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, 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