[New-bugs-announce] [issue18780] SystemError when formatting int subclass

[Serhiy Storchaka]

New submission from Serhiy Storchaka:

>>> class I(int):
...     def __str__(self):
...         return 'spam'
... 
>>> '%i' % (I(42),)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
SystemError: Objects/unicodeobject.c:13595: bad argument to internal function

This issue is related to issue18738 and will be fixed when use PyNumber_ToBase() for any int subclass (not only for bool).

----------
messages: 195631
nosy: haypo, serhiy.storchaka
priority: normal
severity: normal
status: open
title: SystemError when formatting int subclass
type: crash
versions: Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18780>
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