[Tutor] Package loading

[Karim]

On 11/29/2010 09:15 PM, Karim wrote:
>
> Hello every one,
>
> I created a package with the following structure:
>
>     * ops/
>           o __init__.py
>           o tcl/
>                 + __init__.py
>                 + pythontcl.py
>
>
>
> > *python -c "import sys; print sys.path; import ops.tcl.pythontcl"*
>
> ['', 
> '/usr/local/lib/python2.6/dist-packages/pyparsing-1.5.5-py2.6.egg', 
> '*/home/karim/build/UML2PDK/lib/python*', '/usr/lib/python2.6', 
> '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', 
> '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', 
> '/usr/lib/python2.6/dist-packages', 
> '/usr/lib/python2.6/dist-packages/PIL', 
> '/usr/lib/python2.6/dist-packages/gst-0.10', 
> '/usr/lib/pymodules/python2.6', 
> '/usr/lib/python2.6/dist-packages/gtk-2.0', 
> '/usr/lib/pymodules/python2.6/gtk-2.0', 
> '/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode', 
> '/usr/local/lib/python2.6/dist-packages']
> /*home/karim/build/UML2PDK/lib/python/ops/tcl/pythontcl.py:109: 
> RuntimeWarning: Parent module 'pythontcl' not found while handling 
> absolute import
>   import unittest
> /home/karim/build/UML2PDK/lib/python/ops/tcl/pythontcl.py:110: 
> RuntimeWarning: Parent module 'pythontcl' not found while handling 
> absolute import
>   import sys*
>
> At the lines I import standard modules sys and unittest I get these 
> non-sense warning (my consideration) though I added the top package 
> root, namely, */home/karim/build/UML2PDK/lib/python. The 
> programesecute correctly but I alaways get this nerving warning.
>
> *Any idea will be welcome!* :-)
>
> *Regards
> Karim*
> * 

I believed I know why:

Traceback (most recent call last):
   File "<string>", line 1, in <module>
   File "/home/karim/build/UML2PDK/lib/python/ops/tcl/pythontcl.py", 
line 119, in <module>
     print sys.modules[__package__]
KeyError: 'pythontcl'

It is due to method determine parent in class ModuleImporter.
I don't know why sys.modules has the key 'ops.tcl.pythontcl'
and this class search for the key module 'pythontcl'.

Big mess between relative path or whatever.

Any idea to fix that?

Karim

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