plugin nieulq <plu...@gmail.com> added the comment:
I am using this version on Windows :
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul 8 2019, 20:34:20) [MSC v.1916 64 bit
(AMD64)].
When an attribute of an object is an array, the array is shared between
instances as shown in my example.
class AClass(object):
def __init__(self, val=[]):
self.contents = val
def add_content(self, newcontent):
self.contents.append(newcontent)
return self
def print(self):
for val in self.contents:
print(str(val))
if __name__ == '__main__':
sc = AClass()
sc = sc.add_content("Value1").add_content("Value2")
sb = AClass()
sb = sb.add_content("Value3").add_content("Value4")
sc.print()
print("--------------------------------")
sb.print()
When executed, the output generated by the script is:
Value1
Value2
Value3
Value4
--------------------------------
Value1
Value2
Value3
Value4
It should be :
Value1
Value2
--------------------------------
Value3
Value4
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue38370>
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