[libreoffice-users] Re: Python uno object comparison change in 3.5

Andreas Säger <villeroy@t-online.de> writes:

> Hi,
>
> Your 3rd line is supposed to be:
> TABALIGN_LEFT = uno.Enum("com.sun.star.style.TabAlign", "LEFT")

Crud, I don't how how I missed that, sorry - it's a cut 'n paste error
when posting.  The test script didn't have that typo, but had other
enumerations defined that I removed when posting.

I definitely agree the code runs on the older versions of OO and LibO.
That's sort of the point since it only started failing with 3.5 (I've
been using the original script I first noticed this in for several
years).  I couldn't use 3.5.0 due to the uno loading error (the same
exception you got), so first hit it with 3.5.1RC1.

(Ironically, I suppose, I only got on board with 3.5.1 during the RC
phase specifically to ensure the uno loading fix was working in my
environment since the suggested workaround of removing some of the
shared libraries didn't work.)

Here's a simpler (interactive) example:

    > /opt/libreoffice3.5/program/python
    Python 2.6.1 (r261:67515, Feb 24 2012, 08:33:41) 
    [GCC 4.2.4] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import uno
    >>> from com.sun.star.style import TabStop
    >>> a = TabStop()
    >>> b = TabStop()
    >>> a==b
    False

Since my original post, I have gotten a local build environment for
LibO, and the issue appears to be in the use of the new rich
comparison slot rather than the standard cmp slot 3.4.x was using.
I'm not sure exactly where the error is yet, but returning to the
3.4.5 PyUno_cmp function and use of the older cmp slot works even with
3.5.1RC1.

I've gone and and created a bug (46926) since I think this is a
regression from 3.4.5.  It seems to be an unintended consequence of an
earlier Python 3 changeset (as does another issue I found in the
uno.py wrapper which I added as bug 46926, though that's easier to
work around as it's up in python code).  At least when used with the
internally delivered 2.6.1 interpreter.

-- David




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