[New-bugs-announce] [issue47187] locale module example is wrong for some platforms
Sylvain Marie
report at bugs.python.org
Fri Apr 1 09:45:07 EDT 2022
New submission from Sylvain Marie <sylvain.marie at schneider-electric.com>:
The example in the doc shows
```python
>>> import locale
>>> loc = locale.getlocale() # get current locale
# use German locale; name might vary with platform
>>> locale.setlocale(locale.LC_ALL, 'de_DE')
>>> locale.strcoll('f\xe4n', 'foo') # compare a string containing an umlaut
>>> locale.setlocale(locale.LC_ALL, '') # use user's preferred locale
>>> locale.setlocale(locale.LC_ALL, 'C') # use default (C) locale
>>> locale.setlocale(locale.LC_ALL, loc) # restore saved locale
```
However locale.getlocale() does not return the locale for all categories (locale.LC_ALL is even not allowed) but the locale for the LC_CTYPE category.
Therefore restoring it using `locale.setlocale(locale.LC_ALL, loc)` does not actually restore the initial settings, and may even fail on some platforms (on mine it does).
The correct example should have the first line of code replaced with
```
>>> loc = locale.setlocale(locale.LC_ALL) # get current locale
```
Note: this issue was first reported in the `pandas` library at https://github.com/pandas-dev/pandas/issues/46595
----------
assignee: docs at python
components: Documentation
messages: 416487
nosy: docs at python, smarie
priority: normal
severity: normal
status: open
title: locale module example is wrong for some platforms
versions: Python 3.10
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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue47187>
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