report at bugs
Jul 6, 2009, 7:45 AM
Post #1 of 6
(421 views)
Permalink
|
|
[issue6428] TypeError: __bool__ should return bool or int, returned int
|
|
New submission from SilentGhost <michael.mischurow+bpo [at] gmail>:
According to docs
(http://docs.python.org/3.1/reference/datamodel.html#object.__bool__)
__bool__ can return 1 or 0 instead of True or False.
However, when I ran the following code:
Python 3.1 (r31:73574, Jun 26 2009, 20:21:35) [MSC v.1500 32 bit
(Intel)] on win32
>>> class Spam():
def __bool__(self):
return 1
>>> if Spam():
print('ham')
I got the following error:
Traceback (most recent call last):
File "<pyshell#72>", line 1, in <module>
if Spam():
TypeError: __bool__ should return bool or int, returned int
So, do I misunderstand the docs or is it an error in them?
----------
assignee: georg.brandl
components: Documentation, Interpreter Core
messages: 90181
nosy: SilentGhost, georg.brandl
severity: normal
status: open
title: TypeError: __bool__ should return bool or int, returned int
type: behavior
versions: Python 3.1
_______________________________________
Python tracker <report [at] bugs>
<http://bugs.python.org/issue6428>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/list-python-bugs%40lists.gossamer-threads.com
|
