def prevent_incorrect_plt():
ast = parse_program()
plts = [n for n in ast.find_all("Name") if n.id == 'plt']
if plts and def_use_error(plts[0]):
explain(
"You have imported the <code>matplotlib.pyplot</code> module, "
"but you did not rename it to <code>plt</code> using "
"<code>import matplotlib.pyplot as plt</code>.<br><br><i>(plt_rename_err)<i>",
'verifier')
return True
matplotlib_names = [
'plot', 'hist', 'scatter', 'title', 'xlabel', 'ylabel', 'show'
]
for name in matplotlib_names:
for n in ast.find_all("Name"):
if n.id == name:
if def_use_error(n):
explain(("You have attempted to use the MatPlotLib "
"function named <code>{0}</code>. However, you "
"imported MatPlotLib in a way that does not "
"allow you to use the function directly. I "
"recommend you use <code>plt.{0}</code> instead, "
"after you use <code>import matplotlib.pyplot as "
"plt</code>.<br><br><i>(plt_wrong_import)<i>"
).format(name), 'verifier')
return True
return False
def list_not_initialized_on_run():
match = find_match("for ___ in _item_:\n pass")
if match:
_item_ = match["_item_"][0].astNode
if def_use_error(_item_):
explain("The list in your for loop has not been initialized<br><br><i>(no_list_init)<i></br>")
return True
return False
def list_initialization_misplaced():
match = find_match("for ___ in _item_:\n pass")
if match:
_item_ = match["_item_"][0].astNode
if data_state(_item_).was_type('list') and def_use_error(_item_):
explain("Initialization of <code>{0!s}</code> is a list but either in the wrong place or redefined"
"<br><br><i>(list_init_misplaced)<i></br>".format(_item_.id))
return True
return False
def list_initialization_misplaced():
message = "Initialization of <code>{0!s}</code> is a list but either in the wrong place or redefined"
code = "list_init_misplaced"
tldr = "Iterating over Non-list"
match = find_match("for ___ in _item_:\n pass")
if match:
_item_ = match["_item_"][0].astNode
if data_state(_item_).was_type('list') and def_use_error(_item_):
return explain_r(message.format(_item_.id), code, label=tldr)
return False
def list_not_initialized_on_run():
message = "The list in your for loop has not been initialized."
code = "no_list_init"
tldr = "List Variable Uninitialized"
match = find_match("for ___ in _item_:\n pass")
if match:
_item_ = match["_item_"][0].astNode
if def_use_error(_item_):
return explain_r(message, code, label=tldr)
return False
def condition(self):
ast = parse_program(report=self.report)
matplotlib_names = ['plot', 'hist', 'scatter',
'title', 'xlabel', 'ylabel', 'show']
for name in matplotlib_names:
for n in ast.find_all("Name"):
if n.id == name:
if def_use_error(n):
self.fields['actual'] = name
self.fields['expected'] = "plt." + name
return True
return False
def prevent_incorrect_plt():
ast = parse_program()
plts = [n for n in ast.find_all("Name") if n.id == 'plt']
if plts and def_use_error(plts[0]):
explain("You have imported the <code>matplotlib.pyplot</code> module, "
"but you did not rename it to <code>plt</code> using "
"<code>import matplotlib.pyplot as plt</code>.<br><br><i>(plt_rename_err)<i>", 'verifier')
return True
matplotlib_names = ['plot', 'hist', 'scatter',
'title', 'xlabel', 'ylabel', 'show']
for name in matplotlib_names:
for n in ast.find_all("Name"):
if n.id == name:
if def_use_error(n):
explain(("You have attempted to use the MatPlotLib "
"function named <code>{0}</code>. However, you "
"imported MatPlotLib in a way that does not "
"allow you to use the function directly. I "
"recommend you use <code>plt.{0}</code> instead, "
"after you use <code>import matplotlib.pyplot as "
"plt</code>.<br><br><i>(plt_wrong_import)<i>").format(name), 'verifier')
return True
return False
def condition(self):
ast = parse_program(report=self.report)
plts = [n for n in ast.find_all("Name") if n.id == 'plt']
if plts and any(def_use_error(plt) for plt in plts):
return True
return False