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Thu May 7 23:51:10 CEST 2009 · https://mail.python.org/pipermail/python-dev/2009-May/089512.html

Eric Smith wrote:
> Eric Smith wrote:
>> Neal Becker wrote:
>>> "format_spec ::=  [[fill]align][sign][#][0][width][.precision][type]"
>>> "The precision is ignored for integer values."
>>>
>>> In [36]: '%3x' % 10
>>> Out[36]: '  a'
>>>
>>> In [37]: '%.3x' % 10
>>> Out[37]: '00a'
>>>
>>> Apparently, precision is _not_ ignored? 
>>
>> That section is talking about this:
>>
>>  >>> format(10, '.3x')
>> Traceback (most recent call last):
>>   File "<stdin>", line 1, in <module>
>> ValueError: Precision not allowed in integer format specifier
> 
> So I guess it shouldn't say "is ignored", it should be "is not allowed".

My exact suggestion in http://bugs.python.org/issue5963

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[Python-Dev] typo in 8.1.3.1. Format Specification Mini-Language?