Bug 185794 – dev-python/IcePy - python fails to load Ice module if /usr/lib not on search path

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description slowfood 2007-07-18 18:43:43 UTC]

Seems the default installation of IcePy under gentoo
has problems importing the Ice module:

Digging deeper, the problem is it can't locate /usr/lib/libIce.so
as /usr/lib is not in the default search path.
Adding /usr/lib fixes things:

but an easier way to effect this is with a Ice.pth file at the same
location as the Ice.py module top level:

Any chance of getting this in future ebuilds?

Reproducible: Always

Steps to Reproduce:
problem
    % python -c 'import Ice; print "success"'
    Traceback (most recent call last):
    File "<string>", line 1, in ?
    File "/usr/lib64/python2.4/site-packages/Ice.py", line 30, in ?
    import IcePy
    ImportError: No module named IcePy
    %


Actual Results:  
    % python -c 'import Ice; print "success"'
    success
    %


Expected Results:  
workaround
    % PYTHONPATH='/usr/lib:$PYTHONPATH' !!
    PYTHONPATH='/usr/lib:$PYTHONPATH' python -c 'import Ice; print "success"'
    success
    %

better fix
    % echo '/usr/lib' >> /usr/lib/python2.4/site-packages/Ice.pth
    % python -c 'import Ice; print "success"'
    success
    %




The Ice.pth file is used by Python to implicitly add an entry to the search path.
Seems like a good way to have the Ice.py component be able to find the libIce.so

[Comment 1 Sam Jacobson 2007-07-20 11:25:25 UTC]

I also experienced this bug. I would disagree with adding /usr/lib to the python path though since it's a really big directory, and most files in that directory should not be considered for import (except IcePy).

I have used a different approach in #185972 (a new ebuild for IcePy-3.2.0). It creates a symbolic link from /usr/lib/IcePy.so -> /usr/lib/python-2.x/site-packages/.

[Comment 2 Caleb Tennis (RETIRED) 2007-07-20 19:07:37 UTC]

fixed now from 185972