[Chandler-dev] float('1.0') failing occasionally in French locale

[Brian Kirsch]

Hello,
See comments in-line.

-Brian

Andi Vajda wrote:
>
> On Wed, 13 Sep 2006, Jeffrey Harris wrote:
>
>> Hmm.  Perhaps PyLucene is manipulating the locale?  Lucene indexers are
>> certainly aware of locale.  Presumably it would be painful for
>> performance if PyLucene never released the GIL.
>
> I'm not aware of anyone manipulating the locale 'behind the scenes'. 
> Have you verified that the locale was indeed being manipulated ? The 
> only place that I'm aware of where the locale is manipulated is where 
> the --locale command line option is used.

When Chandler starts certain environmental variables are assigned to 
match the --locale flag.
  
    os.environ['LANGUAGE'] = locale
    os.environ['LC_ALL'] = locale
    os.environ['LC_MESSAGES'] = locale
    os.environ['LANG'] = locale

Also the Python locale, PyICU, and Wx Locales are set.

> If PyLucene never released the GIL then the system would appear to 
> hang temporarily when, for example, optimizing indexes which can take 
> several seconds (or more).
>
> Also, since one can write python extensions to PyLucene, it can call 
> back into python. Because of this and because acquiring the GIL is not 
> re-entrant - Phillip, correct me if I'm wrong - the GIL has to be 
> acquired or released anytime the Python / C++ boundary is crossed.
>
> Andi..
>
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-- 
Brian Kirsch 
Internationalization Architect / Mail Service Engineer
Open Source Applications Foundation
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