Importing errors

Coding Python Support
1

I’m having some trouble importing expat, an xml parser. My site stuff seems to be configured properly, as I can get all other modules I’ve tried working well (os etc), although the sys.path does contain one directory that does not exist (/usr/lib/python2.2/lib-tk)

Anyhow, when I say:

from xml.parsers import expat

I get this error:

Using a clean Global Dictionary.
IMPORT_xmesh:155: SyntaxWarning: name 'update_normals' is used prior to global declaration
Traceback (most recent call last):
  File "IMPORT_xmesh", line 39, in ?
  File "/usr/lib/python2.2/site-packages/_xmlplus/parsers/expat.py", line 4, in
?
    from pyexpat import *
ImportError: /usr/lib/python2.2/lib-dynload/pyexpat.so: undefined symbol: PyUnicodeUCS4_Decode
'import site' failed; use -v for traceback

This works fine in normal python (without the error), so I think it must be some kind of path problem…

I’m running 2.28c and my sys.path (within blender) reads:

['/usr/lib/python2.2/', '/usr/lib/python2.2/plat-linux2', '/usr/lib/python2.2/lib-tk', '/usr/lib/python2.2/lib-dynload', '/home/daniel/temp/blender-2.28c-linux-glibc2.2.5-i386/', '/usr/lib/python2.2/site-packages', '/usr/lib/python2.2/site-packages', '/usr/lib/site-python']

except for the lib-tk dir, everything there exists. It is python version 2.2.2-26

Anyway, any help getting this to work would be appreciated…and no, with the code I’m using, I have to use expat… :-/

Thanks :slight_smile:

Dan.a

2

okay, I’m guessing with the overwhelming response that my post falls in to one of the following categories:

– I have done something extroadinarilly stupid and don’t deserve a response :slight_smile:

– My problem is one that no-one else can duplicate, so no-one is able to offer any help

– My problem is one that no-one else has come across, and no-one can see a situation in which they would need to do what I’m doing, so no-one thinks it’s worth the effort to help track down :wink:

– Or, after reading my post, people instantaneously forget all they have known about blender and python, and do not regain this knowledge until they close down the page

I’m leaning towards 3…but could I have at least input though about whether anyone else can duplicate it…please, just someone with a full python instalation just run that import command in a blender script and see it it works properly…please? :slight_smile:

Dan.a

3

did you try importing it without using the from statement?

import xml

and then create a copy of the function you need.

Martin

4

ImportError: /usr/lib/python2.2/lib-dynload/pyexpat.so: undefined symbol: PyUnicodeUCS4_Decode

Expat is a native python module - your best bet would be to compile your own Blender (so it uses the same python that exists on your hard drive.)

5

yeah…thanks theeth, I tried that :-/ doesn’t make a difference…

I would have thought that having the pyton path stuff right would get rid of the need for a recompile…would it really make a difference? I’ll give it a shot anyway :slight_smile:

I also heard from someone else today (after prodding the forum :wink: ) who suggested that it was pyXML being not compiled for the right unicode mode…(he came across this before)…and that to fix you might need to recompile python (?)…

recompiling blender seems more sensible, should have the same effect, and will (if blender is as hard to compile as I’ve heard) grow me some hair on my chest :wink: so that’s what I’ll do :smiley:

anyway, thanks for the responses :slight_smile:

Dan.a