[issue37625] Class variable is still accessible after class instance has been overwritten out

[Dominik Miedziński]

Dominik Miedziński <domi...@mdzn.pl> added the comment:

This is expected, because list is created during class definition, not 
initialization. You should initialize `variable` in __init__.

class TestClass(object):
    def __init__(self):
        self.variable = []

for num in range(10):
    test = TestClass()
    test.variable.append(num)

----------
nosy: +miedzinski

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<https://bugs.python.org/issue37625>
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