New submission from Daniel <dan+python...@moird.com>:
Not sure if this is the desired behavior but wanted to bring it up anyways.
When you have a class and have a variable in like:
class TestClass(object):
variable = []
then you run it through a loop like:
for num in range(10):
test = TestClass()
test.variable.append(num)
even if you assign another variable to it or none like:
test = "blah"
test = None
then reassign the class:
test = TestClass()
print(test.variable)
will return all the numbers in the list.
also doesn't seem to matter if garbage collection was manually ran.
Attached is a small example code.
This was found on Macos and tested with both python 3.7 and 2.7 Subsequently
same on ubuntu with python 3.5 and python 2.7
----------
components: Interpreter Core
files: variabletest.py
messages: 348130
nosy: moird
priority: normal
severity: normal
status: open
title: Class variable is still accessible after class instance has been
overwritten out
type: behavior
versions: Python 2.7, Python 3.5, Python 3.7
Added file: https://bugs.python.org/file48490/variabletest.py
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue37625>
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