[pywin32-bugs] [ pywin32-Bugs-828151 ] various external libraries change the C locale

[SourceForge.net <no...@so...>]

Bugs item #828151, was opened at 2003-10-22 21:17
Message generated for change (Comment added) made by mhammond
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=551954&aid=828151&group_id=78018

Category: win32
Group: None
>Status: Closed
>Resolution: Wont Fix
Priority: 5
Submitted By: Johan Fredrik Öhman (johanfo)
Assigned to: Nobody/Anonymous (nobody)
>Summary: various external libraries change the C locale

Initial Comment:
This bug caused me some major headache.  On some 
machines (not all) the win32pdh.AddCounter(base, path) 
causes some trouble with the Locale so that the decimal 
is changed from "." to ","
 This has to be a bug?   BTW What is the easiste way to 
check what version number of your win32 extentions I 
am running?

   print "wgetCpu1 (0.3):", float(0.3)    
   counter = win32pdh.AddCounter(base, path)
   print "wgetCpu2 (0.3):", float(0.3)   
==============================
wgetCpu1 (0.3): 0.3
wgetCpu2 (0.3): 0,3


----------------------------------------------------------------------

>Comment By: Mark Hammond (mhammond)
Date: 2004-04-22 19:19

Message:
Logged In: YES 
user_id=14198

This isn't really a bug in these extensions.  There really
are 2 potential bugs here:
1) that the pdh library changes the C locale.  This is
pretty nasty, and the SpamBayes project found MAPI does the
same thing.  Our solution there was to call
'locale.setlocale(locale.LC_NUMERIC, "C")' after any MAPI
function that may change the locale.
2) That Python screws up when the locale is changed
underneath is.  Specifically, future imports may well fail,
along with other obscure stuff.  There is a bug in the main
Python bug database on this.

I'm not convinced the pywin32 extensions should go to
lengths to work around these problems (eg, resetting the
locale to solve this bug may end up creating others, even
possibly in the PDH libraries themself!)

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=551954&aid=828151&group_id=78018