[Python-Dev] Possible bug in class-init, lookin for mentors
max at zettlmeissl.de
Fri Apr 21 11:18:30 EDT 2017
On 21 April 2017 at 12:09, Justus Schwabedal <jschwabedal at gmail.com> wrote:
> I possibly found a bug in class initialization and would like to fix it.
> Here comes the bug-producing example:
> `class Foo:
> def __init__(self, bar=):
> self.list = bar
> spam_1 = Foo()
> spam_2 = Foo()
> At least I think it's a bug. Maybe it's a feature..
It is not a bug.
It is the way in which Python handles mutable keyword arguments.
If you want to use something in this way you should go with
def __init__(self, bar=None):
if bar is None:
bar = 
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