[New-bugs-announce] [issue13602] format string '%b' doesn't work as expected

James Classen report at bugs.python.org
Wed Dec 14 21:18:40 CET 2011

New submission from James Classen <jclassen at gmail.com>:

I notice that, in versions 2.7 and 3.2 on Windows XP (haven't tested any other versions or platforms), the following statements in the interpreter work as documented:

'%x' % 17
'%o' % 17

and output '11' and '21' respectively, as I expect. However,

'%b' % 17

throws "ValueError: unsupported format character 'b' (0x62) at index 1" instead of returning '10001'.

components: None
messages: 149471
nosy: James.Classen
priority: normal
severity: normal
status: open
title: format string '%b' doesn't work as expected
type: behavior
versions: Python 2.7, Python 3.2

Python tracker <report at bugs.python.org>

More information about the New-bugs-announce mailing list