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"""https://github.com/PyCQA/pylint/issues/2615"""
def main():
"""When evaluating except blocks, assume try statements fail."""
try:
res = 1 / 0
res = 42
if main():
res = None
with open(__file__, encoding="utf-8") as opened_file:
res = opened_file.readlines()
except ZeroDivisionError:
print(res) # [used-before-assignment]
print(res)
def nested_except_blocks():
"""Assignments in an except are tested against possibly failing
assignments in try blocks at two different nesting levels."""
try:
res = 1 / 0
res = 42
if main():
res = None
with open(__file__, encoding="utf-8") as opened_file:
res = opened_file.readlines()
except ZeroDivisionError:
try:
more_bad_division = 1 / 0
except ZeroDivisionError:
print(more_bad_division) # [used-before-assignment]
print(res) # [used-before-assignment]
print(res)
def consecutive_except_blocks():
"""An assignment assumed to execute in one TryExcept should continue to be
assumed to execute in a consecutive TryExcept.
"""
try:
res = 100
except ZeroDivisionError:
pass
try:
pass
except ValueError:
print(res)
def name_earlier_in_except_block():
"""Permit the name that might not have been assigned during the try block
to be defined inside a conditional inside the except block.
"""
try:
res = 1 / 0
except ZeroDivisionError:
if main():
res = 10
else:
res = 11
print(res)
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