New submission from Marius Gedminas <[email protected]>:
Python 3.8 miscompiles the following code:
$ cat /tmp/wat.py
enable_debug = False
if not enable_debug or not __debug__:
print("you shall not pass!")
$ python3.7 /tmp/wat.py
you shall not pass!
$ python3.8 /tmp/wat.py
(no output is produced.)
This is a distilled example from zope.traversing's codebase
(https://github.com/zopefoundation/zope.traversing/issues/13).
----------
components: Interpreter Core
messages: 345533
nosy: mgedmin
priority: normal
severity: normal
status: open
title: Python 3.8b1 miscompiles conditional expressions containing __debug__
versions: Python 3.8, Python 3.9
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Python tracker <[email protected]>
<https://bugs.python.org/issue37269>
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