[AG-DEV] AccessGrid setting locale?

Andrew Ford andrew.ford at rit.edu
Mon Apr 4 10:29:06 CDT 2011

Hi Chris,

That makes sense, and I don't know of any other way to fix language issues
like that, but I would suggest that that call be moved somewhere else if
possible. Like the python docs say, it seems inappropriate for a library to
be setting the locale, and when you just do the import
agversion/agversion.select() to e.g. use the IW classes to query or control
the venue client, AG is effectively being used as a library. Could that call
be moved to somewhere like when the GUI is set up? I'm not familiar enough
with the AG codebase to say, but it makes more sense to me to be somewhere
like that rather than in the very high-level general code like Toolkit.py


2011/4/1 Christoph Willing <c.willing at uq.edu.au>

> On 02/04/2011, at 6:04 AM, Andrew Ford wrote:
>  Hi,
>> I noticed some interesting effects in a C++ application I'm developing
>> that calls various AG functions via the Python API. My app also uses
>> wxWidgets, and when I was experimenting with its logging functions, I
>> noticed that the timestamp format it uses changes after I call a standard
>> import agversion and agversion.select(3). I looked a bit for any locale
>> setting AG does and found locale.setlocale(locale.LC_ALL, 'C') in
>> Toolkit.py. Commenting this line out prevents the timestamp (presumably the
>> associated locale settings as well) from changing; I haven't tested whatever
>> effect it may have on the venue client. I'm curious as to what the rationale
>> for this call is, as even the python docs (
>> http://docs.python.org/library/locale.html) say it is not necessarily a
>> good idea to set this in a context like this ("It is generally a bad idea to
>> call setlocale() in some library routine, since as a side effect it affects
>> the entire program.") Any input on this issue would be great.
> Andrew,
> It was added so that non-english language users could use the toolkit. I
> believe the original issue was incorrect time stamping in the chat window
> but there was also some other side effect (which I can't recall right now)
> that was fixed by setting the locale.
> If there's a better way (than setting the locale like that) to fix the
> language issue then lets do it ...
> chris
> Christoph Willing                       +61 7 3365 8316
> QCIF Access Grid Manager
> University of Queensland
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