New submission from Jerry James <loganje...@gmail.com>:
Python 3.8:
>>> import random
>>> r = random.Random(False)
>>> r
<random.Random object at 0x5611716e8b00>
Python 3.9 alpha 4:
>>> import random
>>> r = random.Random(False)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib64/python3.9/random.py", line 100, in __init__
self.seed(x)
File "/usr/lib64/python3.9/random.py", line 163, in seed
super().seed(a)
TypeError: descriptor '__abs__' of 'int' object needs an argument
This arose in the context of Fedora builds with python 3.9. The networkx
project reversed two arguments, resulting in False being passed to
random.Random instead of the intended seed value. I'm glad we noticed the
problem with 3.9 so the intended value will now be used, but that TypeError
message doesn't really indicate the nature of the problem. Could you arrange
for a better message?
----------
components: Library (Lib)
messages: 363766
nosy: loganjerry
priority: normal
severity: normal
status: open
title: random.Random(False) weird error
type: behavior
versions: Python 3.9
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue39918>
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