def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Cast both submitted and true answers as integers.
a_tru = int(a_tru)
a_sub = int(a_sub)
if a_tru == a_sub:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', 1)
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if result == 'correct':
data['raw_submitted_answers'][name] = str(pl.from_json(data['correct_answers'][name]))
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = str(pl.from_json(data['correct_answers'][name])) + ' + {:d}'.format(random.randint(1, 100))
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
invalid_type = random.choice(['float', 'complex', 'expression', 'function', 'variable', 'syntax', 'escape', 'comment'])
if invalid_type == 'float':
data['raw_submitted_answers'][name] = 'x + 1.234'
s = 'Your answer contains the floating-point number ' + str(1.234) + '. '
s += 'All numbers must be expressed as integers (or ratios of integers). '
s += '<br><br><pre>' + phs.point_to_error('x + 1.234', 4) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'complex':
data['raw_submitted_answers'][name] = 'x + (1+2j)'
s = 'Your answer contains the complex number ' + str(2j) + '. '
s += 'All numbers must be expressed as integers (or ratios of integers). '
s += '<br><br><pre>' + phs.point_to_error('x + (1+2j)', 7) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'expression':
data['raw_submitted_answers'][name] = '1 and 0'
s = 'Your answer has an invalid expression. '
s += '<br><br><pre>' + phs.point_to_error('1 and 0', 0) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'function':
data['raw_submitted_answers'][name] = 'atan(x)'
s = 'Your answer calls an invalid function "' + 'atan' + '". '
s += '<br><br><pre>' + phs.point_to_error('atan(x)', 0) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'variable':
data['raw_submitted_answers'][name] = 'x + y'
s = 'Your answer refers to an invalid variable "' + 'y' + '". '
s += '<br><br><pre>' + phs.point_to_error('x + y', 4) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'syntax':
data['raw_submitted_answers'][name] = 'x +* 1'
s = 'Your answer has a syntax error. '
s += '<br><br><pre>' + phs.point_to_error('x +* 1', 4) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'escape':
data['raw_submitted_answers'][name] = 'x + 1\\n'
s = 'Your answer must not contain the character "\\". '
s += '<br><br><pre>' + phs.point_to_error('x + 1\\n', 5) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'comment':
data['raw_submitted_answers'][name] = 'x # some text'
s = 'Your answer must not contain the character "#". '
s += '<br><br><pre>' + phs.point_to_error('x # some text', 2) + '</pre>'
data['format_errors'][name] = s
else:
raise Exception('invalid invalid_type: %s' % invalid_type)
else:
raise Exception('invalid result: %s' % result)
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap submitted answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# If true and submitted answers have different shapes, score is zero
if not (a_sub.shape == a_tru.shape):
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
# Compare submitted answer with true answer
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
correct = pl.is_correct_ndarray2D_ra(a_sub, a_tru, rtol, atol)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
correct = pl.is_correct_ndarray2D_sf(a_sub, a_tru, digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
correct = pl.is_correct_ndarray2D_dd(a_sub, a_tru, digits)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def test(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', 1)
allow_blank = pl.get_string_attrib(element, 'allow-blank', False)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
if allow_blank:
# no invalid answer implemented when allow-blank="true"
result = random.choices(['correct', 'incorrect'], [5, 5])[0]
else:
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if result == 'correct':
data['raw_submitted_answers'][name] = a_tru
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = a_tru + str((random.randint(1, 11) * random.choice([-1, 1])))
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
data['raw_submitted_answers'][name] = ''
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if result == 'correct':
data['raw_submitted_answers'][name] = str(a_tru)
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = str(a_tru + (random.randint(1, 11) * random.choice([-1, 1])))
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
if random.choice([True, False]):
data['raw_submitted_answers'][name] = '1 + 2'
else:
data['raw_submitted_answers'][name] = '3.4'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def test(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if result == 'correct':
data['raw_submitted_answers'][name] = str(a_tru)
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = str(a_tru + (random.randint(1, 11) * random.choice([-1, 1])))
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
if random.choice([True, False]):
data['raw_submitted_answers'][name] = '1 + 2'
else:
data['raw_submitted_answers'][name] = '3.4'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', 1)
allow_blank = pl.get_string_attrib(element, 'allow-blank', False)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
if allow_blank:
# no invalid answer implemented when allow-blank="true"
result = random.choices(['correct', 'incorrect'], [5, 5])[0]
else:
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if result == 'correct':
data['raw_submitted_answers'][name] = a_tru
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = a_tru + str((random.randint(1, 11) * random.choice([-1, 1])))
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
data['raw_submitted_answers'][name] = ''
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
# Get the number of digits to output
digits = pl.get_integer_attrib(element, 'digits', 2)
# Get the presentation type
presentation_type = pl.get_string_attrib(element, 'presentation-type', 'f')
var_name = pl.get_string_attrib(element, 'params-name')
# Get value of variable, raising exception if variable does not exist
var_data = data['params'].get(var_name, None)
if var_data is None:
raise Exception('No value in data["params"] for variable %s in pl-matrix-latex element' % var_name)
# If the variable is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
var_data = pl.from_json(var_data)
if not np.isscalar(var_data):
var_data = np.array(var_data)
# Check if numpy array type is numeric (integer, float or complex)
if np.issubdtype(var_data.dtype, np.number):
# Check shape of variable
if var_data.ndim != 2:
raise Exception('Value in data["params"] for variable %s in pl-matrix-latex element must be 2D array or scalar' % var_name)
else:
raise Exception('Value in data["params"] for variable %s in pl-matrix-latex element must be numeric' % var_name)
# Create string for latex matrix format
html = pl.latex_from_2darray(var_data, presentation_type=presentation_type, digits=digits)
return html
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
allow_blank = pl.get_string_attrib(element, 'allow-blank',
ALLOW_BLANK_DEFAULT)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
result = data['test_type']
if result == 'invalid' and allow_blank:
# We can't have an invalid submission with allow_blank, so just test correct
result = 'correct'
if result == 'correct':
data['raw_submitted_answers'][name] = a_tru
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = a_tru + str(
(random.randint(1, 11) * random.choice([-1, 1])))
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
data['raw_submitted_answers'][name] = ''
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def grade(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# Parse both correct and submitted answer (will throw an error on fail).
variables = get_variables_list(
pl.get_string_attrib(element, 'variables', None))
if isinstance(a_tru, str):
a_tru = phs.convert_string_to_sympy(a_tru, variables)
a_sub = phs.convert_string_to_sympy(a_sub, variables)
# Check equality
correct = a_tru.equals(a_sub)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def parse(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get true answer
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
a_tru = np.array(a_tru)
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
A = np.empty([m, n])
# Create an array for the submitted answer to be stored in data['submitted_answer'][name]
# used for display in the answer and submission panels
# Also creates invalid error messages
invalid_format = False
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
a_sub = data['submitted_answers'].get(each_entry_name, None)
if a_sub is None:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][
each_entry_name] = '(No submitted answer)'
invalid_format = True
elif not a_sub:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][
each_entry_name] = '(Invalid blank entry)'
invalid_format = True
else:
a_sub_parsed = pl.string_to_number(a_sub, allow_complex=False)
if a_sub_parsed is None:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][each_entry_name] = '(Invalid format)'
invalid_format = True
elif not np.isfinite(a_sub_parsed):
data['submitted_answers'][each_entry_name] = None
data['format_errors'][
each_entry_name] = '(Invalid format - not finite)'
invalid_format = True
else:
data['submitted_answers'][each_entry_name] = pl.to_json(
a_sub_parsed)
A[i, j] = a_sub_parsed
if invalid_format:
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
data['format_errors'][name] = chevron.render(
f, {
'format_error': True
}).strip()
data['submitted_answers'][name] = None
else:
data['submitted_answers'][name] = pl.to_json(A)
def graphviz_from_inc_matrix(element, data):
# Get attributes
engine = pl.get_string_attrib(element, 'engine', pl_graph.ENGINE_DEFAULT)
input_param = pl.get_string_attrib(element, 'params-name-matrix',
pl_graph.PARAMS_NAME_MATRIX_DEFAULT)
input_label = pl.get_string_attrib(element, 'params-name-labels',
pl_graph.PARAMS_NAME_LABELS_DEFAULT)
mat = np.array(pl.from_json(data['params'][input_param]))
show_weights = pl.get_boolean_attrib(
element, 'weights', pl_graph.WEIGHTS_DEFAULT
) # by default display weights for stochastic matrices
digits = pl.get_integer_attrib(
element, 'weights-digits', pl_graph.WEIGHTS_DIGITS_DEFAULT
) # if displaying weights how many digits to round to
presentation_type = pl.get_string_attrib(
element, 'weights-presentation-type',
pl_graph.WEIGHTS_PRESENTATION_TYPE_DEFAULT).lower()
label = None
if input_label is not None:
label = np.array(pl.from_json(data['params'][input_label]))
# Sanity check
if label is not None and label.shape[0] != mat.shape[0]:
raise Exception(
'Dimensionality of the label is not consistent with the dimensionality of the matrix'
)
if label is None:
label = range(mat.shape[1])
G = pygraphviz.AGraph(directed=True)
for node in label:
G.add_node(node)
edges, nodes = mat.shape
for e in range(edges):
out_node = np.where(mat[e] == -1)[0][0]
in_node = np.where(mat[e] == 1)[0][0]
G.add_edge(out_node, in_node)
return G.string()
def grade(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return data
# Convert true answer to numpy
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return data
# Convert submitted answer to numpy
a_sub = np.array(a_sub)
# If true and submitted answers have different shapes, score is zero
if not (a_sub.shape == a_tru.shape):
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return data
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
# Compare submitted answer with true answer
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-5)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
correct = pl.is_correct_ndarray2D_ra(a_sub, a_tru, rtol, atol)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
eps_digits = pl.get_integer_attrib(element, 'eps_digits', 3)
correct = pl.is_correct_ndarray2D_sf(a_sub, a_tru, digits, eps_digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
eps_digits = pl.get_integer_attrib(element, 'eps_digits', 3)
correct = pl.is_correct_ndarray2D_dd(a_sub, a_tru, digits, eps_digits)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return data
def parse(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get true answer
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
a_tru = np.array(a_tru)
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
A = np.empty([m, n])
# Create an array for the submitted answer to be stored in data['submitted_answer'][name]
# used for display in the answer and submission panels
# Also creates invalid error messages
invalid_format = False
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
a_sub = data['submitted_answers'].get(each_entry_name, None)
if a_sub is None:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][
each_entry_name] = '(No submitted answer)'
invalid_format = True
elif not a_sub:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][
each_entry_name] = '(Invalid blank entry)'
invalid_format = True
else:
a_sub_parsed = pl.string_to_number(a_sub, allow_complex=False)
if a_sub_parsed is None:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][each_entry_name] = '(Invalid format)'
invalid_format = True
elif not np.isfinite(a_sub_parsed):
data['submitted_answers'][each_entry_name] = None
data['format_errors'][
each_entry_name] = '(Invalid format - not finite)'
invalid_format = True
else:
data['submitted_answers'][each_entry_name] = pl.to_json(
a_sub_parsed)
A[i, j] = a_sub_parsed
if invalid_format:
data['format_errors'][
name] = 'At least one of the entries has invalid format (empty entries or not a double precision floating point number)'
data['submitted_answers'][name] = None
else:
data['submitted_answers'][name] = pl.to_json(A)
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
allow_partial_credit = pl.get_boolean_attrib(element, 'allow-partial-credit', ALLOW_PARTIAL_CREDIT_DEFAULT)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
result = data['test_type']
number_of_correct = 0
feedback = {}
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
if result == 'correct':
data['raw_submitted_answers'][each_entry_name] = str(a_tru[i, j])
number_of_correct += 1
feedback.update({each_entry_name: 'correct'})
elif result == 'incorrect':
data['raw_submitted_answers'][each_entry_name] = str(a_tru[i, j] + (random.uniform(1, 10) * random.choice([-1, 1])))
feedback.update({each_entry_name: 'incorrect'})
elif result == 'invalid':
if random.choice([True, False]):
data['raw_submitted_answers'][each_entry_name] = '1,2'
data['format_errors'][each_entry_name] = '(Invalid format)'
else:
data['raw_submitted_answers'][name] = ''
data['format_errors'][each_entry_name] = '(Invalid blank entry)'
else:
raise Exception('invalid result: %s' % result)
if result == 'invalid':
data['format_errors'][name] = 'At least one of the entries has invalid format (empty entries or not a double precision floating point number)'
if number_of_correct == m * n:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
if not allow_partial_credit:
score_value = 0
else:
score_value = number_of_correct / (m * n)
data['partial_scores'][name] = {'score': score_value, 'weight': weight, 'feedback': feedback}
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', 1)
allow_partial_credit = pl.get_boolean_attrib(element, 'allow-partial-credit', False)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
result = random.choices(['correct', 'incorrect', 'incorrect'], [5, 5, 1])[0]
number_of_correct = 0
feedback = {}
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
if result == 'correct':
data['raw_submitted_answers'][each_entry_name] = str(a_tru[i, j])
number_of_correct += 1
feedback.update({each_entry_name: 'correct'})
elif result == 'incorrect':
data['raw_submitted_answers'][each_entry_name] = str(a_tru[i, j] + (random.uniform(1, 10) * random.choice([-1, 1])))
feedback.update({each_entry_name: 'incorrect'})
elif result == 'invalid':
if random.choice([True, False]):
data['raw_submitted_answers'][each_entry_name] = '1,2'
data['format_errors'][each_entry_name] = '(Invalid format)'
else:
data['raw_submitted_answers'][name] = ''
data['format_errors'][each_entry_name] = '(Invalid blank entry)'
else:
raise Exception('invalid result: %s' % result)
if result == 'invalid':
data['format_errors'][name] = 'At least one of the entries has invalid format (empty entries or not a double precision floating point number)'
if number_of_correct == m * n:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
if not allow_partial_credit:
score_value = 0
else:
score_value = number_of_correct / (m * n)
data['partial_scores'][name] = {'score': score_value, 'weight': weight, 'feedback': feedback}
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if result == 'correct':
data['raw_submitted_answers'][name] = str(a_tru)
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['partial_scores'][name] = {'score': 0, 'weight': weight}
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
# Get max error according to numpy.allclose()
eps = np.absolute(a_tru) * rtol + atol
eps += random.uniform(1, 10)
answer = a_tru + eps * random.choice([-1, 1])
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
# Get max error according to pl.is_correct_scalar_sf()
if (a_tru == 0):
n = digits - 1
else:
n = -int(np.floor(np.log10(np.abs(a_tru)))) + (digits - 1)
eps = 0.51 * (10**-n)
eps += random.uniform(1, 10)
answer = a_tru + eps * random.choice([-1, 1])
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
# Get max error according to pl.is_correct_scalar_dd()
eps = 0.51 * (10**-digits)
eps += random.uniform(1, 10)
answer = a_tru + eps * random.choice([-1, 1])
else:
raise ValueError('method of comparison "%s" is not valid' %
comparison)
data['raw_submitted_answers'][name] = str(answer)
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
data['raw_submitted_answers'][name] = '1 + 2'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get remove-spaces option
remove_spaces = pl.get_string_attrib(element, 'remove-spaces', False)
# Get remove-leading-trailing option
remove_leading_trailing = pl.get_string_attrib(element,
'remove-leading-trailing',
False)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Remove the leading and trailing characters
if (remove_leading_trailing):
a_sub = a_sub.strip()
# Remove the blank spaces between characters
if (remove_spaces):
a_sub = a_sub.replace(' ', '')
if a_tru == a_sub:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def grade(data):
# get the submitted answers
MatrixA = pl.from_json(data['submitted_answers']['A'])
MatrixB = MatrixA.dot(MatrixA)
if ((not MatrixB.any()) and MatrixA.any()):
data['partial_scores']['A'] = {"score": 1, "weight": 1}
data['score'] = 1.0
else:
data['score'] = 0
def render(element_html, data):
# Get attribs
element = lxml.html.fragment_fromstring(element_html)
engine = pl.get_string_attrib(element, 'engine', ENGINE_DEFAULT)
input_param = pl.get_string_attrib(element, 'params-name-matrix',
PARAMS_NAME_MATRIX_DEFAULT)
input_label = pl.get_string_attrib(element, 'params-name-labels',
PARAMS_NAME_LABELS_DEFAULT)
if len(str(element.text)) == 0 and input_param is None:
raise Exception(
'No graph source given! Must either define graph in HTML or provide source in params.'
)
graphviz_data = None
if input_param is not None:
mat = np.array(pl.from_json(data['params'][input_param]))
label = None
if input_label is not None:
label = np.array(pl.from_json(data['params'][input_label]))
graphviz_data = json.dumps(
graphviz_from_matrix(mat, label, engine, element))
else:
# Read the contents of this element as the data to render
# we dump the string to json to ensure that newlines are
# properly encoded
graphviz_data = json.dumps(str(element.text))
html_params = {
'uuid': pl.get_uuid(),
'workerURL': '/node_modules/viz.js/full.render.js',
'data': graphviz_data,
'engine': engine,
}
with open('pl-graph.mustache') as f:
html = chevron.render(f, html_params).strip()
return html
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get remove-spaces option
remove_spaces = pl.get_string_attrib(element, 'remove-spaces', False)
# Get remove-leading-trailing option
remove_leading_trailing = pl.get_string_attrib(element, 'remove-leading-trailing', False)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Remove the leading and trailing characters
if (remove_leading_trailing):
a_sub = a_sub.strip()
# Remove the blank spaces between characters
if (remove_spaces):
a_sub = a_sub.replace(' ', '')
if a_tru == a_sub:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def render(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
digits = pl.get_integer_attrib(element, 'digits', 2)
matlab_data = ''
python_data = 'import numpy as np\n\n'
for child in element:
if child.tag == 'variable':
# Raise exception of variable does not have a name
pl.check_attribs(child, required_attribs=['params_name'], optional_attribs=[])
# Get name of variable
var_name = pl.get_string_attrib(child, 'params_name')
# Get value of variable, raising exception if variable does not exist
var_data = data['params'].get(var_name, None)
if var_data is None:
raise Exception('No value in data["params"] for variable %s in pl_matrix_output element' % var_name)
# If the variable is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
var_data = pl.from_json(var_data)
if np.isscalar(var_data):
prefix = ''
suffix = ''
else:
# Wrap the variable in an ndarray (if it's already one, this does nothing)
var_data = np.array(var_data)
# Check shape of variable
if var_data.ndim != 2:
raise Exception('Value in data["params"] for variable %s in pl_matrix_output element must be a scalar or a 2D array' % var_name)
# Create prefix/suffix so python string is np.array( ... )
prefix = 'np.array('
suffix = ')'
# Create string for matlab and python format
matlab_data += pl.inner_html(child) + ' = ' + pl.string_from_2darray(var_data, language='matlab', digits=digits) + ';\n'
python_data += pl.inner_html(child) + ' = ' + prefix + pl.string_from_2darray(var_data, language='python', digits=digits) + suffix + '\n'
html_params = {
'default_is_matlab': True,
'matlab_data': matlab_data,
'python_data': python_data,
'element_index': element_index,
'uuid': pl.get_uuid()
}
with open('pl_matrix_output.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
return html
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if random.choice([True, False]):
# matlab
if result == 'correct':
data['raw_submitted_answers'][name] = pl.numpy_to_matlab(
a_tru, ndigits=12, wtype='g')
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = pl.numpy_to_matlab(
a_tru + (random.uniform(1, 10) * random.choice([-1, 1])),
ndigits=12,
wtype='g')
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
data['raw_submitted_answers'][name] = '[1, 2, 3]'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
else:
# python
if result == 'correct':
data['raw_submitted_answers'][name] = str(np.array(a_tru).tolist())
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = str(
(a_tru +
(random.uniform(1, 10) * random.choice([-1, 1]))).tolist())
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
data['raw_submitted_answers'][name] = '[[1, 2, 3], [4, 5]]'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def parse(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get true answer
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
a_tru = np.array(a_tru)
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
A = np.empty([m, n])
# Create an array for the submitted answer to be stored in data['submitted_answer'][name]
# used for display in the answer and submission panels
# Also creates invalid error messages
invalid_format = False
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
a_sub = data['submitted_answers'].get(each_entry_name, None)
if a_sub is None:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][each_entry_name] = '(No submitted answer)'
invalid_format = True
elif not a_sub:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][each_entry_name] = '(Invalid blank entry)'
invalid_format = True
else:
a_sub_parsed = pl.string_to_number(a_sub, allow_complex=False)
if a_sub_parsed is None:
data['submitted_answers'][each_entry_name] = None
data['format_errors'][each_entry_name] = '(Invalid format)'
invalid_format = True
elif not np.isfinite(a_sub_parsed):
data['submitted_answers'][each_entry_name] = None
data['format_errors'][each_entry_name] = '(Invalid format - not finite)'
invalid_format = True
else:
data['submitted_answers'][each_entry_name] = pl.to_json(a_sub_parsed)
A[i, j] = a_sub_parsed
if invalid_format:
data['format_errors'][name] = 'At least one of the entries has invalid format (empty entries or not a double precision floating point number)'
data['submitted_answers'][name] = None
else:
data['submitted_answers'][name] = pl.to_json(A)
def parse(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
allow_fractions = pl.get_boolean_attrib(element, 'allow-fractions',
ALLOW_FRACTIONS_DEFAULT)
# Get true answer
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
a_tru = np.array(a_tru)
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
A = np.empty([m, n])
# Create an array for the submitted answer to be stored in data['submitted_answer'][name]
# used for display in the answer and submission panels
# Also creates invalid error messages
invalid_format = False
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
a_sub = data['submitted_answers'].get(each_entry_name, None)
value, newdata = pl.string_fraction_to_number(a_sub,
allow_fractions,
allow_complex=False)
if value is not None:
A[i, j] = value
data['submitted_answers'][each_entry_name] = newdata[
'submitted_answers']
else:
invalid_format = True
data['format_errors'][each_entry_name] = newdata[
'format_errors']
data['submitted_answers'][each_entry_name] = None
if invalid_format:
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
data['format_errors'][name] = chevron.render(
f, {
'format_error': True,
'allow_fractions': allow_fractions
}).strip()
data['submitted_answers'][name] = None
else:
data['submitted_answers'][name] = pl.to_json(A)
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if random.choice([True, False]):
# matlab
if result == 'correct':
data['raw_submitted_answers'][name] = pl.numpy_to_matlab(a_tru, ndigits=12, wtype='g')
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = pl.numpy_to_matlab(a_tru + (random.uniform(1, 10) * random.choice([-1, 1])), ndigits=12, wtype='g')
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
data['raw_submitted_answers'][name] = '[1, 2, 3]'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
else:
# python
if result == 'correct':
data['raw_submitted_answers'][name] = str(np.array(a_tru).tolist())
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = str((a_tru + (random.uniform(1, 10) * random.choice([-1, 1]))).tolist())
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
data['raw_submitted_answers'][name] = '[[1, 2, 3], [4, 5]]'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def format_true_ans(element, data, name):
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
# Get comparison parameters
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
# FIXME: render correctly with respect to rtol and atol
a_tru = '{:.12g}'.format(a_tru)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = pl.string_from_number_sigfig(a_tru, digits=digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = '{:.{ndigits}f}'.format(a_tru, ndigits=digits)
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
return a_tru
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
force_text = pl.get_boolean_attrib(element, 'text', TEXT_DEFAULT)
varname = pl.get_string_attrib(element, 'params-name')
show_header = pl.get_boolean_attrib(element, 'show-header',
SHOW_HEADER_DEFAULT)
show_index = pl.get_boolean_attrib(element, 'show-index',
SHOW_INDEX_DEFAULT)
show_dimensions = pl.get_boolean_attrib(element, 'show-dimensions',
SHOW_DIMENSIONS_DEFAULT)
if varname not in data['params']:
raise Exception('Could not find {} in params!'.format(varname))
var_out = data['params'][varname]
html = ''
var_type = 'text'
# determine the type of variable to render
if isinstance(var_out, dict) and '_type' in var_out:
if not force_text:
var_type = var_out['_type']
var_out = pl.from_json(var_out)
# render the output variable
if var_type == 'dataframe':
html += var_out.to_html(header=show_header,
index=show_index,
classes=['pl-python-variable-table'])
if show_dimensions:
html += '<p class="pl-python-variable-table-dimensions">{} rows x {} columns</p>'.format(
str(var_out.shape[0]), str(var_out.shape[1]))
else:
no_highlight = pl.get_boolean_attrib(element, 'no-highlight',
NO_HIGHLIGHT_DEFAULT)
prefix = pl.get_string_attrib(element, 'prefix', PREFIX_DEFAULT)
suffix = pl.get_string_attrib(element, 'suffix', SUFFIX_DEFAULT)
text = prefix + repr(var_out) + suffix
html += '<pl-code language="python" no-highlight="{}">{}</pl-code>'.format(
no_highlight, text)
return html
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
base = pl.get_integer_attrib(element, 'base', BASE_DEFAULT)
# Get correct answer
a_tru = data['correct_answers'][name]
# If correct answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_tru = pl.from_json(a_tru)
if isinstance(a_tru, str):
a_tru = pl.string_to_integer(a_tru, base)
result = data['test_type']
if result == 'correct':
if base > 0:
data['raw_submitted_answers'][name] = numpy.base_repr(a_tru, base)
elif random.choice([True, False]):
data['raw_submitted_answers'][name] = numpy.base_repr(a_tru, 10)
else:
# Use 0x format
data['raw_submitted_answers'][name] = f'{a_tru:#x}'
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = numpy.base_repr(
a_tru + (random.randint(1, 11) * random.choice([-1, 1])),
base if base > 0 else 10)
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
# FIXME: add more invalid expressions, make text of format_errors
# correct, and randomize
if random.choice([True, False]):
data['raw_submitted_answers'][name] = '1 + 2'
else:
data['raw_submitted_answers'][name] = '3.4'
data['format_errors'][name] = 'invalid'
else:
raise Exception('invalid result: %s' % result)
def prepare(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
required_attribs = ['answers-name']
optional_attribs = [
'weight', 'correct-answer', 'label', 'suffix', 'display', 'size',
'show-help-text', 'base', 'allow-blank', 'blank-value'
]
pl.check_attribs(element, required_attribs, optional_attribs)
name = pl.get_string_attrib(element, 'answers-name')
base = pl.get_integer_attrib(element, 'base', BASE_DEFAULT)
if base != 0 and (base < 2 or base > 36):
raise Exception('Base must be either 0, or between 2 and 36')
correct_answer = pl.get_string_attrib(element, 'correct-answer',
CORRECT_ANSWER_DEFAULT)
if correct_answer is not None:
if name in data['correct_answers']:
raise Exception('duplicate correct_answers variable name: %s' %
name)
# Test conversion, but leave as string so proper value is shown on answer panel
data['correct_answers'][name] = correct_answer
if correct_answer is None:
correct_answer = pl.from_json(data['correct_answers'].get(name, None))
if correct_answer is not None:
try:
if not isinstance(correct_answer, int):
correct_answer = int(correct_answer, base)
except Exception:
raise Exception('correct answer is not a valid input: %s' % name)
if correct_answer > 2**53 - 1 or correct_answer < -((2**53) - 1):
raise Exception(
'correct answer must be between -9007199254740991 and +9007199254740991 (that is, between -(2^53 - 1) and +(2^53 - 1)).'
)
def render(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
variables_string = pl.get_string_attrib(element, 'variables', None)
variables = get_variables_list(variables_string)
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
operators = ', '.join([
'cos', 'sin', 'tan', 'exp', 'log', 'sqrt', '( )', '+', '-', '*',
'/', '^', '**'
])
constants = ', '.join(['pi'])
info_params = {
'format': True,
'variables': variables_string,
'operators': operators,
'constants': constants
}
with open('pl_symbolic_input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl_symbolic_input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl_symbolic_input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
a_sub = data['submitted_answers'][name]
a_sub = phs.convert_string_to_sympy(a_sub, variables)
html_params['a_sub'] = sympy.latex(a_sub)
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(
raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl_symbolic_input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
if isinstance(a_tru, str):
a_tru = phs.convert_string_to_sympy(a_tru, variables)
html_params = {'answer': True, 'a_tru': sympy.latex(a_tru)}
with open('pl_symbolic_input.mustache', 'r',
encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, element_index, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers_name')
label = pl.get_string_attrib(element, 'label', None)
suffix = pl.get_string_attrib(element, 'suffix', None)
display = pl.get_string_attrib(element, 'display', 'inline')
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
info_params = {
'format': True,
'relabs': True,
'rtol': rtol,
'atol': atol
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
info_params = {
'format': True,
'sigfig': True,
'digits': digits,
'comparison_eps': 0.51 * (10**-(digits - 1))
}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
info_params = {
'format': True,
'decdig': True,
'digits': digits,
'comparison_eps': 0.51 * (10**-(digits - 0))
}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
info_params['allow_complex'] = pl.get_boolean_attrib(
element, 'allow_complex', False)
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'suffix': suffix,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if display == 'inline':
html_params['inline'] = True
elif display == 'block':
html_params['block'] = True
else:
raise ValueError(
'method of display "%s" is not valid (must be "inline" or "block")'
% display)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
html_params['suffix'] = suffix
html_params['a_sub'] = '{:.12g}'.format(a_sub)
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(
raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
# Get comparison parameters
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
a_tru = '{:.12g}'.format(a_tru)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = pl.string_from_number_sigfig(a_tru, digits=digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
a_tru = '{:.{ndigits}f}'.format(a_tru, ndigits=digits)
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
# FIXME: render correctly with respect to method of comparison
html_params = {
'answer': True,
'label': label,
'a_tru': a_tru,
'suffix': suffix
}
with open('pl_number_input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def test(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
result = random.choices(['correct', 'incorrect', 'invalid'], [5, 5, 1])[0]
if result == 'correct':
data['raw_submitted_answers'][name] = str(
pl.from_json(data['correct_answers'][name]))
data['partial_scores'][name] = {'score': 1, 'weight': weight}
elif result == 'incorrect':
data['raw_submitted_answers'][name] = str(
pl.from_json(data['correct_answers'][name])) + ' + {:d}'.format(
random.randint(1, 100))
data['partial_scores'][name] = {'score': 0, 'weight': weight}
elif result == 'invalid':
invalid_type = random.choice([
'float', 'complex', 'expression', 'function', 'variable', 'syntax',
'escape', 'comment'
])
if invalid_type == 'float':
data['raw_submitted_answers'][name] = 'x + 1.234'
s = 'Your answer contains the floating-point number ' + str(
1.234) + '. '
s += 'All numbers must be expressed as integers (or ratios of integers). '
s += '<br><br><pre>' + phs.point_to_error('x + 1.234',
4) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'complex':
data['raw_submitted_answers'][name] = 'x + (1+2j)'
s = 'Your answer contains the complex number ' + str(2j) + '. '
s += 'All numbers must be expressed as integers (or ratios of integers). '
s += '<br><br><pre>' + phs.point_to_error('x + (1+2j)',
7) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'expression':
data['raw_submitted_answers'][name] = '1 and 0'
s = 'Your answer has an invalid expression. '
s += '<br><br><pre>' + phs.point_to_error('1 and 0', 0) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'function':
data['raw_submitted_answers'][name] = 'atan(x)'
s = 'Your answer calls an invalid function "' + 'atan' + '". '
s += '<br><br><pre>' + phs.point_to_error('atan(x)', 0) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'variable':
data['raw_submitted_answers'][name] = 'x + y'
s = 'Your answer refers to an invalid variable "' + 'y' + '". '
s += '<br><br><pre>' + phs.point_to_error('x + y', 4) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'syntax':
data['raw_submitted_answers'][name] = 'x +* 1'
s = 'Your answer has a syntax error. '
s += '<br><br><pre>' + phs.point_to_error('x +* 1', 4) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'escape':
data['raw_submitted_answers'][name] = 'x + 1\\n'
s = 'Your answer must not contain the character "\\". '
s += '<br><br><pre>' + phs.point_to_error('x + 1\\n', 5) + '</pre>'
data['format_errors'][name] = s
elif invalid_type == 'comment':
data['raw_submitted_answers'][name] = 'x # some text'
s = 'Your answer must not contain the character "#". '
s += '<br><br><pre>' + phs.point_to_error('x # some text',
2) + '</pre>'
data['format_errors'][name] = s
else:
raise Exception('invalid invalid_type: %s' % invalid_type)
else:
raise Exception('invalid result: %s' % result)
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
allow_partial_credit = pl.get_boolean_attrib(element, 'allow-partial-credit', False)
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
number_of_correct = 0
feedback = {}
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
a_sub = data['submitted_answers'].get(each_entry_name, None)
# Get submitted answer (if it does not exist, score is zero)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Compare submitted answer with true answer
if comparison == 'relabs':
correct = pl.is_correct_scalar_ra(a_sub, a_tru[i, j], rtol, atol)
elif comparison == 'sigfig':
correct = pl.is_correct_scalar_sf(a_sub, a_tru[i, j], digits)
elif comparison == 'decdig':
correct = pl.is_correct_scalar_dd(a_sub, a_tru[i, j], digits)
if correct:
number_of_correct += 1
feedback.update({each_entry_name: 'correct'})
else:
feedback.update({each_entry_name: 'incorrect'})
if number_of_correct == m * n:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
if not allow_partial_credit:
score_value = 0
else:
score_value = number_of_correct / (m * n)
data['partial_scores'][name] = {'score': score_value, 'weight': weight, 'feedback': feedback}
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
if '_pl_matrix_input_format' in data['submitted_answers']:
format_type = data['submitted_answers']['_pl_matrix_input_format'].get(name, 'matlab')
else:
format_type = 'matlab'
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
if (rtol < 0):
raise ValueError('Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError('Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {'format': True, 'relabs': True, 'rtol': '{:g}'.format(rtol), 'atol': '{:g}'.format(atol)}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError('Attribute digits = {:d} must be non-negative'.format(digits))
info_params = {'format': True, 'sigfig': True, 'digits': '{:d}'.format(digits), 'comparison_eps': 0.51 * (10**-(digits - 1))}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError('Attribute digits = {:d} must be non-negative'.format(digits))
info_params = {'format': True, 'decdig': True, 'digits': '{:d}'.format(digits), 'comparison_eps': 0.51 * (10**-(digits - 0))}
else:
raise ValueError('method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")' % comparison)
info_params['allow_complex'] = pl.get_boolean_attrib(element, 'allow-complex', False)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# Format answer as a string
html_params['a_sub'] = pl.string_from_2darray(a_sub, language=format_type, digits=12, presentation_type='g')
else:
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
# Get true answer - do nothing if it does not exist
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
a_tru = np.array(a_tru)
# Get comparison parameters
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
matlab_data = pl.string_from_2darray(a_tru, language='matlab', digits=12, presentation_type='g')
python_data = pl.string_from_2darray(a_tru, language='python', digits=12, presentation_type='g')
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
matlab_data = pl.string_from_2darray(a_tru, language='matlab', digits=digits, presentation_type='sigfig')
python_data = pl.string_from_2darray(a_tru, language='python', digits=digits, presentation_type='sigfig')
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
matlab_data = pl.string_from_2darray(a_tru, language='matlab', digits=digits, presentation_type='f')
python_data = pl.string_from_2darray(a_tru, language='python', digits=digits, presentation_type='f')
else:
raise ValueError('method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")' % comparison)
html_params = {
'answer': True,
'label': label,
'matlab_data': matlab_data,
'python_data': python_data,
'uuid': pl.get_uuid()
}
if format_type == 'matlab':
html_params['default_is_matlab'] = True
else:
html_params['default_is_python'] = True
with open('pl-matrix-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
suffix = pl.get_string_attrib(element, 'suffix', None)
display = pl.get_string_attrib(element, 'display', DISPLAY_DEFAULT)
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
html_params = {
'question': True,
'name': name,
'label': label,
'suffix': suffix,
'editable': editable,
'size': pl.get_integer_attrib(element, 'size', SIZE_DEFAULT),
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
if (rtol < 0):
raise ValueError(
'Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError(
'Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {
'format': True,
'relabs': True,
'rtol': '{:g}'.format(rtol),
'atol': '{:g}'.format(atol)
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'sigfig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 1))
}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'decdig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 0))
}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
# Update parameters for the info popup
show_correct = 'correct' in html_params and pl.get_boolean_attrib(
element, 'show-correct-answer', SHOW_CORRECT_ANSWER_DEFAULT)
info_params['allow_complex'] = pl.get_boolean_attrib(
element, 'allow-complex', ALLOW_COMPLEX_DEFAULT)
info_params['show_info'] = pl.get_boolean_attrib(
element, 'show-help-text', SHOW_HELP_TEXT_DEFAULT)
info_params['show_correct'] = show_correct
# Find the true answer to be able to display it in the info popup
ans_true = None
if pl.get_boolean_attrib(element, 'show-correct-answer',
SHOW_CORRECT_ANSWER_DEFAULT):
ans_true = format_true_ans(element, data, name)
if ans_true is not None:
info_params['a_tru'] = ans_true
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
# Within mustache, the shortformat generates the shortinfo that is used as a placeholder inside of the numeric entry.
# Here we opt to not generate the value, hence the placeholder is empty.
info_params['shortformat'] = pl.get_boolean_attrib(
element, 'show-placeholder', SHOW_PLACEHOLDER_DEFAULT)
shortinfo = chevron.render(f, info_params).strip()
html_params['info'] = info
html_params['shortinfo'] = shortinfo
# Determine the title of the popup based on what information is being shown
if pl.get_boolean_attrib(element, 'show-help-text',
SHOW_HELP_TEXT_DEFAULT):
html_params['popup_title'] = 'Number'
else:
html_params['popup_title'] = 'Correct Answer'
# Enable or disable the popup
if pl.get_boolean_attrib(element, 'show-help-text',
SHOW_HELP_TEXT_DEFAULT) or show_correct:
html_params['show_info'] = True
html_params[
'display_append_span'] = 'questionmark' in html_params or suffix
if display == 'inline':
html_params['inline'] = True
elif display == 'block':
html_params['block'] = True
else:
raise ValueError(
'method of display "%s" is not valid (must be "inline" or "block")'
% display)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
html_params['suffix'] = suffix
html_params['a_sub'] = '{:.12g}'.format(a_sub)
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(
raw_submitted_answer)
# Add true answer to be able to display it in the submitted answer panel
ans_true = None
if pl.get_boolean_attrib(element, 'show-correct-answer',
SHOW_CORRECT_ANSWER_DEFAULT):
ans_true = format_true_ans(element, data, name)
if ans_true is not None:
html_params['a_tru'] = ans_true
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
ans_true = format_true_ans(element, data, name)
if ans_true is not None:
html_params = {
'answer': True,
'label': label,
'a_tru': ans_true,
'suffix': suffix
}
with open('pl-number-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
# Get weight
weight = pl.get_integer_attrib(element, 'weight', WEIGHT_DEFAULT)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Get submitted answer (if it does not exist, score is zero)
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Cast both submitted and true answers as np.float64, because...
#
# If the method of comparison is relabs (i.e., using relative and
# absolute tolerance) then np.allclose is applied to check if the
# submitted and true answers are the same. If either answer is an
# integer outside the range of int64...
#
# https://docs.scipy.org/doc/numpy-1.13.0/user/basics.types.html
#
# ...then numpy throws this error:
#
# TypeError: ufunc 'isfinite' not supported for the input types, and
# the inputs could not be safely coerced to any supported types
# according to the casting rule ''safe''
#
# Casting as np.float64 avoids this error. This is reasonable in any case,
# because <pl-number-input> accepts double-precision floats, not ints.
#
if np.iscomplexobj(a_sub) or np.iscomplexobj(a_tru):
a_sub = np.complex128(a_sub)
a_tru = np.complex128(a_tru)
else:
a_sub = np.float64(a_sub)
a_tru = np.float64(a_tru)
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison',
COMPARISON_DEFAULT)
# Compare submitted answer with true answer
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', RTOL_DEFAULT)
atol = pl.get_float_attrib(element, 'atol', ATOL_DEFAULT)
correct = pl.is_correct_scalar_ra(a_sub, a_tru, rtol, atol)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
correct = pl.is_correct_scalar_sf(a_sub, a_tru, digits)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', DIGITS_DEFAULT)
correct = pl.is_correct_scalar_dd(a_sub, a_tru, digits)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
if correct:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
def grade(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
allow_partial_credit = pl.get_boolean_attrib(element,
'allow-partial-credit', False)
# Get weight
weight = pl.get_integer_attrib(element, 'weight', 1)
# Get method of comparison, with relabs as default
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
else:
raise ValueError('method of comparison "%s" is not valid' % comparison)
# Get true answer (if it does not exist, create no grade - leave it
# up to the question code)
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
return
# Wrap true answer in ndarray (if it already is one, this does nothing)
a_tru = np.array(a_tru)
# Throw an error if true answer is not a 2D numpy array
if a_tru.ndim != 2:
raise ValueError('true answer must be a 2D array')
else:
m, n = np.shape(a_tru)
number_of_correct = 0
feedback = {}
for i in range(m):
for j in range(n):
each_entry_name = name + str(n * i + j + 1)
a_sub = data['submitted_answers'].get(each_entry_name, None)
# Get submitted answer (if it does not exist, score is zero)
if a_sub is None:
data['partial_scores'][name] = {'score': 0, 'weight': weight}
return
# If submitted answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Compare submitted answer with true answer
if comparison == 'relabs':
correct = pl.is_correct_scalar_ra(a_sub, a_tru[i, j], rtol,
atol)
elif comparison == 'sigfig':
correct = pl.is_correct_scalar_sf(a_sub, a_tru[i, j], digits)
elif comparison == 'decdig':
correct = pl.is_correct_scalar_dd(a_sub, a_tru[i, j], digits)
if correct:
number_of_correct += 1
feedback.update({each_entry_name: 'correct'})
else:
feedback.update({each_entry_name: 'incorrect'})
if number_of_correct == m * n:
data['partial_scores'][name] = {'score': 1, 'weight': weight}
else:
if not allow_partial_credit:
score_value = 0
else:
score_value = number_of_correct / (m * n)
data['partial_scores'][name] = {
'score': score_value,
'weight': weight,
'feedback': feedback
}
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
# get the name of the element, in this case, the name of the array
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
allow_partial_credit = pl.get_boolean_attrib(element,
'allow-partial-credit', False)
allow_feedback = pl.get_boolean_attrib(element, 'allow-feedback',
allow_partial_credit)
if data['panel'] == 'question':
editable = data['editable']
# Get true answer
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
raise Exception(
'No value in data["correct_answers"] for variable %s in pl-matrix-component-input element'
% name)
else:
if np.isscalar(a_tru):
raise Exception(
'Value in data["correct_answers"] for variable %s in pl-matrix-component-input element cannot be a scalar.'
% name)
else:
a_tru = np.array(a_tru)
if a_tru.ndim != 2:
raise Exception(
'Value in data["correct_answers"] for variable %s in pl-matrix-component-input element must be a 2D array.'
% name)
else:
m, n = np.shape(a_tru)
input_array = createTableForHTMLDisplay(m, n, name, label, data,
'input')
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
if (rtol < 0):
raise ValueError(
'Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError(
'Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {
'format': True,
'relabs': True,
'rtol': '{:g}'.format(rtol),
'atol': '{:g}'.format(atol)
}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'sigfig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 1))
}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError(
'Attribute digits = {:d} must be non-negative'.format(
digits))
info_params = {
'format': True,
'decdig': True,
'digits': '{:d}'.format(digits),
'comparison_eps': 0.51 * (10**-(digits - 0))
}
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'input_array': input_array,
'inline': True,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
a_tru = pl.from_json(data['correct_answers'].get(name, None))
m, n = np.shape(a_tru)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# Format submitted answer as a latex string
sub_latex = '$' + pl.latex_from_2darray(
a_sub, presentation_type='g', digits=12) + '$'
# When allowing feedback, display submitted answers using html table
sub_html_table = createTableForHTMLDisplay(m, n, name, label, data,
'output-feedback')
if allow_feedback and score is not None:
if score < 1:
html_params['a_sub_feedback'] = sub_html_table
else:
html_params['a_sub'] = sub_latex
else:
html_params['a_sub'] = sub_latex
else:
# create html table to show submitted answer when there is an invalid format
html_params['raw_submitted_answer'] = createTableForHTMLDisplay(
m, n, name, label, data, 'output-invalid')
with open('pl-matrix-component-input.mustache', 'r',
encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
# Get true answer - do nothing if it does not exist
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
a_tru = np.array(a_tru)
# Get comparison parameters and create the display data
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
latex_data = '$' + pl.latex_from_2darray(
a_tru, presentation_type='g', digits=12) + '$'
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
latex_data = '$' + pl.latex_from_2darray(
a_tru, presentation_type='sigfig', digits=digits) + '$'
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
latex_data = '$' + pl.latex_from_2darray(
a_tru, presentation_type='f', digits=digits) + '$'
else:
raise ValueError(
'method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")'
% comparison)
html_params = {
'answer': True,
'label': label,
'latex_data': latex_data,
'uuid': pl.get_uuid()
}
with open('pl-matrix-component-input.mustache',
'r',
encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', LABEL_DEFAULT)
suffix = pl.get_string_attrib(element, 'suffix', SUFFIX_DEFAULT)
display = pl.get_string_attrib(element, 'display', DISPLAY_DEFAULT)
remove_leading_trailing = pl.get_string_attrib(
element, 'remove-leading-trailing', REMOVE_LEADING_TRAILING_DEFAULT)
remove_spaces = pl.get_string_attrib(element, 'remove-spaces',
REMOVE_SPACES_DEFAULT)
placeholder = pl.get_string_attrib(element, 'placeholder',
PLACEHOLDER_DEFAULT)
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
if remove_leading_trailing:
if remove_spaces:
space_hint = 'All spaces will be removed from your answer.'
else:
space_hint = 'Leading and trailing spaces will be removed from your answer.'
else:
if remove_spaces:
space_hint = 'All spaces between text will be removed but leading and trailing spaces will be left as part of your answer.'
else:
space_hint = 'Leading and trailing spaces will be left as part of your answer.'
# Get info strings
info_params = {'format': True, 'space_hint': space_hint}
with open('pl-string-input.mustache', 'r', encoding='utf-8') as f:
template = f.read()
info = chevron.render(template, info_params).strip()
info_params.pop('format', None)
html_params = {
'question':
True,
'name':
name,
'label':
label,
'suffix':
suffix,
'remove-leading-trailing':
remove_leading_trailing,
'remove-spaces':
remove_spaces,
'editable':
editable,
'info':
info,
'placeholder':
placeholder,
'size':
pl.get_integer_attrib(element, 'size', SIZE_DEFAULT),
'show_info':
pl.get_boolean_attrib(element, 'show-help-text',
SHOW_HELP_TEXT_DEFAULT),
'uuid':
pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
html_params['display_append_span'] = html_params['show_info'] or suffix
if display == 'inline':
html_params['inline'] = True
elif display == 'block':
html_params['block'] = True
else:
raise ValueError(
'method of display "%s" is not valid (must be "inline" or "block")'
% display)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl-string-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None and name in data['submitted_answers']:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
a_sub = pl.escape_unicode_string(a_sub)
html_params['suffix'] = suffix
html_params['a_sub'] = a_sub
elif name not in data['submitted_answers']:
html_params['missing_input'] = True
html_params['parse_error'] = None
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = pl.escape_unicode_string(
raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
html_params['error'] = html_params['parse_error'] or html_params.get(
'missing_input', False)
with open('pl-string-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
html_params = {
'answer': True,
'label': label,
'a_tru': a_tru,
'suffix': suffix
}
with open('pl-string-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
# get the name of the element, in this case, the name of the array
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
allow_partial_credit = pl.get_boolean_attrib(element, 'allow-partial-credit', False)
allow_feedback = pl.get_boolean_attrib(element, 'allow-feedback', allow_partial_credit)
if data['panel'] == 'question':
editable = data['editable']
# Get true answer
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is None:
raise Exception('No value in data["correct_answers"] for variable %s in pl-matrix-component-input element' % name)
else:
if np.isscalar(a_tru):
raise Exception('Value in data["correct_answers"] for variable %s in pl-matrix-component-input element cannot be a scalar.' % name)
else:
a_tru = np.array(a_tru)
if a_tru.ndim != 2:
raise Exception('Value in data["correct_answers"] for variable %s in pl-matrix-component-input element must be a 2D array.' % name)
else:
m, n = np.shape(a_tru)
input_array = createTableForHTMLDisplay(m, n, name, label, data, 'input')
# Get comparison parameters and info strings
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
if (rtol < 0):
raise ValueError('Attribute rtol = {:g} must be non-negative'.format(rtol))
if (atol < 0):
raise ValueError('Attribute atol = {:g} must be non-negative'.format(atol))
info_params = {'format': True, 'relabs': True, 'rtol': '{:g}'.format(rtol), 'atol': '{:g}'.format(atol)}
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError('Attribute digits = {:d} must be non-negative'.format(digits))
info_params = {'format': True, 'sigfig': True, 'digits': '{:d}'.format(digits), 'comparison_eps': 0.51 * (10**-(digits - 1))}
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
if (digits < 0):
raise ValueError('Attribute digits = {:d} must be non-negative'.format(digits))
info_params = {'format': True, 'decdig': True, 'digits': '{:d}'.format(digits), 'comparison_eps': 0.51 * (10**-(digits - 0))}
else:
raise ValueError('method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")' % comparison)
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'input_array': input_array,
'inline': True,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
a_tru = pl.from_json(data['correct_answers'].get(name, None))
m, n = np.shape(a_tru)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
# Wrap answer in an ndarray (if it's already one, this does nothing)
a_sub = np.array(a_sub)
# Format submitted answer as a latex string
sub_latex = '$' + pl.latex_from_2darray(a_sub, presentation_type='g', digits=12) + '$'
# When allowing feedback, display submitted answers using html table
sub_html_table = createTableForHTMLDisplay(m, n, name, label, data, 'output-feedback')
if allow_feedback and score is not None:
if score < 1:
html_params['a_sub_feedback'] = sub_html_table
else:
html_params['a_sub'] = sub_latex
else:
html_params['a_sub'] = sub_latex
else:
# create html table to show submitted answer when there is an invalid format
html_params['raw_submitted_answer'] = createTableForHTMLDisplay(m, n, name, label, data, 'output-invalid')
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
# Get true answer - do nothing if it does not exist
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
a_tru = np.array(a_tru)
# Get comparison parameters and create the display data
comparison = pl.get_string_attrib(element, 'comparison', 'relabs')
if comparison == 'relabs':
rtol = pl.get_float_attrib(element, 'rtol', 1e-2)
atol = pl.get_float_attrib(element, 'atol', 1e-8)
# FIXME: render correctly with respect to rtol and atol
latex_data = '$' + pl.latex_from_2darray(a_tru, presentation_type='g', digits=12) + '$'
elif comparison == 'sigfig':
digits = pl.get_integer_attrib(element, 'digits', 2)
latex_data = '$' + pl.latex_from_2darray(a_tru, presentation_type='sigfig', digits=digits) + '$'
elif comparison == 'decdig':
digits = pl.get_integer_attrib(element, 'digits', 2)
latex_data = '$' + pl.latex_from_2darray(a_tru, presentation_type='f', digits=digits) + '$'
else:
raise ValueError('method of comparison "%s" is not valid (must be "relabs", "sigfig", or "decdig")' % comparison)
html_params = {
'answer': True,
'label': label,
'latex_data': latex_data,
'uuid': pl.get_uuid()
}
with open('pl-matrix-component-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
digits = pl.get_integer_attrib(element, 'digits', 2)
show_matlab = pl.get_boolean_attrib(element, 'show-matlab', True)
show_mathematica = pl.get_boolean_attrib(element, 'show-mathematica', True)
show_python = pl.get_boolean_attrib(element, 'show-python', True)
default_tab = pl.get_string_attrib(element, 'default-tab', 'matlab')
tab_list = ['matlab', 'mathematica', 'python']
if default_tab not in tab_list:
raise Exception(f'invalid default-tab: {default_tab}')
# Setting the default tab
displayed_tab = [show_matlab, show_mathematica, show_python]
if not any(displayed_tab):
raise Exception('All tabs have been hidden from display. At least one tab must be shown.')
default_tab_index = tab_list.index(default_tab)
# If not displayed, make first visible tab the default
if not displayed_tab[default_tab_index]:
first_display = displayed_tab.index(True)
default_tab = tab_list[first_display]
default_tab_index = tab_list.index(default_tab)
# Active tab should be the default tab
default_tab_list = [False, False, False]
default_tab_list[default_tab_index] = True
[active_tab_matlab, active_tab_mathematica, active_tab_python] = default_tab_list
# Process parameter data
matlab_data = ''
mathematica_data = ''
python_data = 'import numpy as np\n\n'
for child in element:
if child.tag == 'variable':
# Raise exception if variable does not have a name
pl.check_attribs(child, required_attribs=['params-name'], optional_attribs=['comment', 'digits'])
# Get name of variable
var_name = pl.get_string_attrib(child, 'params-name')
# Get value of variable, raising exception if variable does not exist
var_data = data['params'].get(var_name, None)
if var_data is None:
raise Exception('No value in data["params"] for variable %s in pl-variable-output element' % var_name)
# If the variable is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
var_data = pl.from_json(var_data)
# Get comment, if it exists
var_matlab_comment = ''
var_mathematica_comment = ''
var_python_comment = ''
if pl.has_attrib(child, 'comment'):
var_comment = pl.get_string_attrib(child, 'comment')
var_matlab_comment = f' % {var_comment}'
var_mathematica_comment = f' (* {var_comment} *)'
var_python_comment = f' # {var_comment}'
# Get digit for child, if it exists
if not pl.has_attrib(child, 'digits'):
var_digits = digits
else:
var_digits = pl.get_string_attrib(child, 'digits')
# Assembling Python array formatting
if np.isscalar(var_data):
prefix = ''
suffix = ''
else:
# Wrap the variable in an ndarray (if it's already one, this does nothing)
var_data = np.array(var_data)
# Check shape of variable
if var_data.ndim > 2:
raise Exception('Value in data["params"] for variable %s in pl-variable-output element must be a scalar, a vector, or a 2D array' % var_name)
# Create prefix/suffix so python string is np.array( ... )
prefix = 'np.array('
suffix = ')'
# Mathematica reserved letters: C D E I K N O
mathematica_reserved = ['C', 'D', 'E', 'I', 'K', 'N', 'O']
if pl.inner_html(child) in mathematica_reserved:
mathematica_suffix = 'm'
else:
mathematica_suffix = ''
# Create string for matlab and python format
var_name_disp = pl.inner_html(child)
var_matlab_data = pl.string_from_numpy(var_data, language='matlab', digits=var_digits)
var_mathematica = pl.string_from_numpy(var_data, language='mathematica', digits=var_digits)
var_python_data = pl.string_from_numpy(var_data, language='python', digits=var_digits)
matlab_data += f'{var_name_disp} = {var_matlab_data};{var_matlab_comment}\n'
mathematica_data += f'{var_name_disp}{mathematica_suffix} = {var_mathematica};{var_mathematica_comment}\n'
python_data += f'{var_name_disp} = {prefix}{var_python_data}{suffix}{var_python_comment}\n'
html_params = {
'active_tab_matlab': active_tab_matlab,
'active_tab_mathematica': active_tab_mathematica,
'active_tab_python': active_tab_python,
'show_matlab': show_matlab,
'show_mathematica': show_mathematica,
'show_python': show_python,
'matlab_data': matlab_data,
'mathematica_data': mathematica_data,
'python_data': python_data,
'uuid': pl.get_uuid()
}
with open('pl-variable-output.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
suffix = pl.get_string_attrib(element, 'suffix', None)
display = pl.get_string_attrib(element, 'display', 'inline')
remove_leading_trailing = pl.get_string_attrib(element,
'remove-leading-trailing',
False)
remove_spaces = pl.get_string_attrib(element, 'remove-spaces', False)
placeholder = pl.get_string_attrib(element, 'placeholder', None)
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get info strings
info_params = {'format': True}
with open('pl-string-input.mustache', 'r', encoding='utf-8') as f:
template = f.read()
info = chevron.render(template, info_params).strip()
info_params.pop('format', None)
html_params = {
'question': True,
'name': name,
'label': label,
'suffix': suffix,
'remove-leading-trailing': remove_leading_trailing,
'remove-spaces': remove_spaces,
'editable': editable,
'info': info,
'placeholder': placeholder,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if display == 'inline':
html_params['inline'] = True
elif display == 'block':
html_params['block'] = True
else:
raise ValueError(
'method of display "%s" is not valid (must be "inline" or "block")'
% display)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl-string-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
html_params['suffix'] = suffix
html_params['a_sub'] = a_sub
else:
raw_submitted_answer = data['raw_submitted_answers'].get(
name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(
raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-string-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
html_params = {
'answer': True,
'label': label,
'a_tru': a_tru,
'suffix': suffix
}
with open('pl-string-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
def render(element_html, data):
element = lxml.html.fragment_fromstring(element_html)
name = pl.get_string_attrib(element, 'answers-name')
label = pl.get_string_attrib(element, 'label', None)
suffix = pl.get_string_attrib(element, 'suffix', None)
display = pl.get_string_attrib(element, 'display', 'inline')
if data['panel'] == 'question':
editable = data['editable']
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
# Get info strings
info_params = {'format': True}
with open('pl-integer-input.mustache', 'r', encoding='utf-8') as f:
info = chevron.render(f, info_params).strip()
with open('pl-integer-input.mustache', 'r', encoding='utf-8') as f:
info_params.pop('format', None)
info_params['shortformat'] = True
shortinfo = chevron.render(f, info_params).strip()
html_params = {
'question': True,
'name': name,
'label': label,
'suffix': suffix,
'editable': editable,
'info': info,
'shortinfo': shortinfo,
'uuid': pl.get_uuid()
}
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
if display == 'inline':
html_params['inline'] = True
elif display == 'block':
html_params['block'] = True
else:
raise ValueError('method of display "%s" is not valid (must be "inline" or "block")' % display)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
with open('pl-integer-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'submission':
parse_error = data['format_errors'].get(name, None)
html_params = {
'submission': True,
'label': label,
'parse_error': parse_error,
'uuid': pl.get_uuid()
}
if parse_error is None:
# Get submitted answer, raising an exception if it does not exist
a_sub = data['submitted_answers'].get(name, None)
if a_sub is None:
raise Exception('submitted answer is None')
# If answer is in a format generated by pl.to_json, convert it
# back to a standard type (otherwise, do nothing)
a_sub = pl.from_json(a_sub)
html_params['suffix'] = suffix
html_params['a_sub'] = '{:d}'.format(a_sub)
else:
raw_submitted_answer = data['raw_submitted_answers'].get(name, None)
if raw_submitted_answer is not None:
html_params['raw_submitted_answer'] = escape(raw_submitted_answer)
partial_score = data['partial_scores'].get(name, {'score': None})
score = partial_score.get('score', None)
if score is not None:
try:
score = float(score)
if score >= 1:
html_params['correct'] = True
elif score > 0:
html_params['partial'] = math.floor(score * 100)
else:
html_params['incorrect'] = True
except Exception:
raise ValueError('invalid score' + score)
with open('pl-integer-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
elif data['panel'] == 'answer':
a_tru = pl.from_json(data['correct_answers'].get(name, None))
if a_tru is not None:
html_params = {'answer': True, 'label': label, 'a_tru': '{:d}'.format(a_tru), 'suffix': suffix}
with open('pl-integer-input.mustache', 'r', encoding='utf-8') as f:
html = chevron.render(f, html_params).strip()
else:
html = ''
else:
raise Exception('Invalid panel type: %s' % data['panel'])
return html
