Bugs item #1417699, was opened at 2006-01-29 02:04
Message generated for change (Comment added) made by birkenfeld
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Category: Python Library
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Bernhard Herzog (bernhard)
>Assigned to: Martin v. Löwis (loewis)
Summary: float/atof have become locale aware
Initial Comment:
The builtin float and the function string.atof have
become locale aware in Python 2.4:
Python 2.4.2 (#1, Nov 29 2005, 16:07:55)
[GCC 2.95.4 20011002 (Debian prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for
more information.
>>> import locale
>>> import string
>>> locale.setlocale(locale.LC_ALL, "de_DE")
'de_DE'
>>> float("1,5")
1.5
>>> string.atof("1,5")
1.5
This doesn't match what's specified in pep 331:
- float() and str() stay locale-unaware.
It also doesn't match the documentation for atof:
Convert a string to a floating point number.
The string must have the standard syntax for a
floating point literal in Python, optionally
preceded by a sign ("+" or "-"). Note that this
behaves identical to the built-in function float()
when passed a string.
The documentation for float() doesn't state which
format is accepted by float(), though.
The reason for this behavior is ultimately, that
PyOS_ascii_strtod accepts the locale specific
convention in addition to the "C"-locale/python
convention, even though the comment in the code
preceding its definition states:
This function behaves like the standard strtod()
function does in the C locale.
----------------------------------------------------------------------
>Comment By: Georg Brandl (birkenfeld)
Date: 2006-02-17 13:19
Message:
Logged In: YES
user_id=1188172
Martin, you checked in the patch which is mentioned in PEP
331. Is this correct behavior?
----------------------------------------------------------------------
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