[Python-Dev] typo in 8.1.3.1. Format Specification Mini-Language?
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? ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] typo in 8.1.3.1. Format Specification Mini-Language?
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 ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] typo in 8.1.3.1. Format Specification Mini-Language?
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. ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] typo in 8.1.3.1. Format Specification Mini-Language?
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?
Apparent typo reports should go to the tracker, along with version
information. In this case, the Format Specification Mini-Language is
for the new str.format() and format() facilities, not for % formatting,
which is described in Old String Formatting Operations. Ironically, you
report does point to a doc problem: precision is actually not allowed
for integer types.
3.0.1
format(10, '3x')
' a'
format(10, '.3x')
Traceback (most recent call last):
File pyshell#2, line 1, in module
format(10, '.3x')
ValueError: Precision not allowed in integer format specifier
'{0:3x}'.format(10)
' a'
'{0:.3x}'.format(10)
Traceback (most recent call last):
File pyshell#4, line 1, in module
'{0:.3x}'.format(10)
ValueError: Precision not allowed in integer format specifier
http://bugs.python.org/issue5963
Terry Jan Reedy
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Re: [Python-Dev] typo in 8.1.3.1. Format Specification Mini-Language?
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 ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
