Re: [xml] python bindings on windows

[Daniel Veillard <veillard redhat com>]

On Sat, Nov 23, 2002 at 09:06:53PM +0100, Stéphane Bidoul wrote:
> I tried it both from a CVS checkout and 
> from libxml2-python-2.4.28.tar.gz.

  okay,

> It builds fine, except for 2 missing exports
> in libxslt.def.src:
> - xsltResolveStylesheetAttributeSet
> - xsltSaveResultToString

  Well, that's in Igor's land :-)

> Also, I noticed that the attribs.py test crashed
> because of the MERGED_MODULE mode (I don't understand
> exactly why, though).

  hum, strange ... I may have to look at it. Is that just on Windows ?

> In any case it is not
> be necessary on windows. Attached is the patch to
> setup.py.in that fixes that.
> The same patch also replaces '../../_bin' with '@prefix@'
> and adds libexslt to the link libraries.

  Okay, applied, I'm not sure I 100%  follow the magic involved, but
from the distance it looks fine.

> Next, we need to change libxsl.py to bypass
> the 'dl' magic on windows. I'd suggest inserting
> something like this: 
>
> if not hasattr(sys,'getdlopenflags'):
>     import libxml2mod
>     import libxsltmod
>     import libxml2
> else: 
>     ...
>
> at the beginning of the file.

 Could you explain a bit,

> Finally, there are still memory leaks in the tests,
> but I'm not sure how to diagnose those. Any hint?
> tstxpath.py
> Memory leak 8 bytes
> xpathext.py
> Memory leak 8 bytes
> xpathret.py
> Memory leak 4 bytes

  Those are "normal". When registering extension XPath functions, the
registratyion takes 4/8 bytes and there is no mechanism yet to deallocate
them. 4 bytes lost per extension function is reasonnable still and I live
with it so far (this is platform independant). Note when you get such 
a report, libxml2.dumpMemory() saves to the .memdump file the current set of
allocated and not freed memory blocks.

Daniel

-- 
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