[Nix-dev] python fails to find rdflib

[Florian Friesdorf]

Hi Yury,

On Thu, 23 Feb 2012 22:18:07 +0400, "Yury G.  Kudryashov" <urkud.urkud at gmail.com> wrote:
> Hi!
> 
> The following fails for me:
> echo import rdflib | \
> PYTHONPATH=${pythonPackages.rdflib}/lib/python2.7/site-packages python -
> 
> What should I use instead? $PYTHONPATH contains rdflib-3.0.0-py2.7.egg.

Debugging your problem
----------------------
The full actually used sys.path and content of rdflib's site-packages
would be helpful for debugging:

echo import sys,pprint;pprint.pprint(sys.path) | \
PYTHONPATH=${pythonPackages.rdflib}/lib/python2.7/site-packages python -

ls -l ${pythonPackages.rdflib}/lib/python2.7/site-packages


Maybe solving your problem
--------------------------
You could check the patch series at:
https://github.com/chaoflow/nixpkgs/tree/python

starting with:
https://github.com/chaoflow/nixpkgs/commit/5ef258be0ca0d7ce12353b5b3ebd7281fb9468ff


Also the single commit at
https://github.com/chaoflow/nix/commit/f0e3b4d1ca60b039b727a6e5d411f3d2b41bbf66
which you can apply to buildenv.pl in the store.


I'm currently rebuilding my system with these patches based on the
stdenv-updates branch and will push them, if all goes well.

With these patches you can:

nix-env -p a -i nixpkgs_sys.python27Full
nix-env -p a -i nixpkgs_sys.python27Packages.rdflib
nix-env -p a -i nixpkgs_sys.python27Packages.site

Beware, that you do not want to install "site" into normal profiles, as
it will remove the isolation of python scripts from profiles they are
installed in, but make all packages in a profile available to all python
scripts in the profile.

regards
florian
-- 
Florian Friesdorf <flo at chaoflow.net>
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