pylint-errors
W0102 (dangerous-default-value)
Problematic code:
def foo(data={}):
data.update({'key': 'value'})
return data
Correct code:
def foo(data):
if not data:
data = {'key': 'value'}
return data
Rationale:
Used when a mutable value as list or dictionary is detected in a default value for an argument.