Skip Montanaro wrote:
Pylint doesn't catch that I have shadowed the argument msg. Since
that shadowing happened in an except clause it went unexecuted (and
thus undetected) for a long time.
It seems to me that formal function parameters are about as important
as globals. Any chance of coaxing pylint into warning about shadowing
parameters?
When do you shadow a formal parameter?
My first intuition would be when you assign a new value to it.
However, that means that you get three warnings in the code below:
def f(x = None):
if x is None:
x = []
x = x + x
y = x
x = y + y
return x
Do you have a better definition for detecting unwanted shadowing?
Albert
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