2011-05-17 19:32:23 Markos Chandras napisał(a):
> On Tue, May 17, 2011 at 01:11:57PM -0400, Mark Loeser wrote:
> > Arfrever Frehtes Taifersar Arahesis <Arfrever@gentoo.org> said:
> > > PyXML is dead:
> > >   http://mail.python.org/pipermail/xml-sig/2004-November/010735.html
> > >   http://mail.python.org/pipermail/xml-sig/2006-June/011545.html
> > > 
> > > PyXML provides _xmlplus module, which replaces xml module (from standard library) at run time,
> > > which might result in various problems.
> > > 
> > > I'm planning to implement the following solution:
> > > - Python >=2.7.1-r2:2.7 will provide xml.use_pyxml() function. Calling of this function will be
> > >   necessary to use replace xml module with _xmlplus module. Python >=2.7.1-r2:2.7 will be added
> > >   to the tree in next week and will be temporarily package.masked. Later this change will be
> > >   backported to new versions in older slots.
> > > - All packages, which use PyXML, will have to be patched to call xml.use_pyxml(). The following
> > >   code should be added before first import of anything from xml module:
> > > 
> > > import xml
> > > if hasattr(xml, "use_pyxml"):
> > >     xml.use_pyxml()
> > 
> > Is this "use_pyxml" upstream?  From what you are saying, it is not. In
> > that case, we have just made patches for every package that will never
> > be allowed upstream.  Why not do something more worthwhile than waste the
> > time of having to support something that might just become a problem to
> > maintain in the future?
> > 
> 
> I second that. Why do we need to make all the work fixing packages
> instead of letting upstream do their job? I am not so excited to 
> fix every package I maintain as it is quite possible to introduce
> regressions in the process. Furthermore, I don't understand your first
> message. You say that you will provide xml.use_pyxml() function on
> python-2.7. Is this code official or you are just patching the official
> python releases?
> Anyway, as I said, I'd rather wait for upstream to fix their packages
> instead of me.

Some upstreams are dead and some packages using PyXML will never be ported by upstreams to use
something else than PyXML (e.g. lxml).

$ python2.7
Python 2.7.1+ (2.7:572fbd9ca28f+, May 16 2011, 21:40:05) 
[GCC 4.5.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import xml, _xmlplus
>>> xml_modules = set(xml.__all__)
>>> _xmlplus_modules = set(_xmlplus.__all__)
>>> xml_modules - _xmlplus_modules
set(['etree'])
>>> _xmlplus_modules - xml_modules
set(['xpath', 'utils', 'schema', 'marshal', 'xslt'])
>>>

-- 
Arfrever Frehtes Taifersar Arahesis