pip uninstall or upgrade error

[gamesbook]

When I try a pip install --upgrade or even pip uninstall I get the same type of errors as raised here - ckan/ckanext-pdfview#17

Traceback (most recent call last):
  File "/usr/lib/ckan/default/lib/python2.7/site.py", line 703, in <module>
    main()
  File "/usr/lib/ckan/default/lib/python2.7/site.py", line 683, in main
    paths_in_sys = addsitepackages(paths_in_sys)
  File "/usr/lib/ckan/default/lib/python2.7/site.py", line 282, in addsitepackages
    addsitedir(sitedir, known_paths)
  File "/usr/lib/ckan/default/lib/python2.7/site.py", line 204, in addsitedir
    addpackage(sitedir, name, known_paths)
  File "/usr/lib/ckan/default/lib/python2.7/site.py", line 173, in addpackage
    exec(line)
  File "<string>", line 1, in <module>
KeyError: 'ckanext'

I tried to apply all the suggested changes and patches outlined in that issue (including the setup.py approach) to showcase, but without success.

[gamesbook]

I installed "from scratch" with a clean copy of CKAN and had no problems - so possibly it was the faulty uninstall that triggered this?

[AnestisSelmani]

Hello,
I have installed a CKAN Instance and I have installed the ckanext-showcase module.
Although the installation didn't raise any errors and I was able to add a few showcases when some of my users that I set as showcase administrators started adding showcases the module has stopped working.

1. The page {portal.url/showcase} can't be viewed unless I am connected as system administrator. When a user or even a showcase user tries to enter the page get's an internal server error.

2. From that point on when I am trying to create a new system administrator from console I get the bellow message (This is why I am writing the comment to this issue)
   Traceback (most recent call last):
   File "/usr/lib/ckan/default/lib/python2.7/site.py", line 703, in
   main()
   File "/usr/lib/ckan/default/lib/python2.7/site.py", line 683, in main
   paths_in_sys = addsitepackages(paths_in_sys)
   File "/usr/lib/ckan/default/lib/python2.7/site.py", line 282, in addsitepackages
   addsitedir(sitedir, known_paths)
   File "/usr/lib/ckan/default/lib/python2.7/site.py", line 204, in addsitedir
   addpackage(sitedir, name, known_paths)
   File "/usr/lib/ckan/default/lib/python2.7/site.py", line 173, in addpackage
   exec(line)
   File "", line 1, in
   KeyError: 'ckanext'

3. The server log is
   ckanext_default.error.log.txt

Because I don't have the ability to install the CKAN again now is there any suggestions on how I to fix this?

Any help would be greatly appreciated

[torfsen]

This might be related to issues with the namespace packages that CKAN extensions are using. Please check if the following steps solve your problem:

1. Install CKAN in a new virtualenv.
2. When installing CKAN extensions, make sure that you
   • Use the latest version (older versions of some extensions did not declare their namespace packages correctly, see for example Issues with extension's Python namespace packages ckan#2893)
   • When installing CKAN extensions using pip, always use the "editable mode" (--editable or -e) due to a problem in pip (pip install --editable and pip install clash for namespace packages pypa/pip#3).

If this does not solve your problem then please try to find out which extension is causing the issue.