[ckan-dev] Cannot start CKAN: Import error SOLVED

lucia.espona at wsl.ch lucia.espona at wsl.ch
Wed Sep 21 08:16:04 UTC 2016 

Thanks for the advice Tim,

I also found this solution for the particular case of branch switching: http://codeinthehole.com/writing/a-useful-git-post-checkout-hook-for-python-repos/

Best,
Lucia
_________________________________________________________
Dr. Lucia Espona Pernas

Swiss Federal Institute for Forest, Snow and Landscape Research WSL
Hauptgebäaude Labortrakt (HL C21)
Zürcherstrasse 111
8903 Birmensdorf
Switzerland

+41 44 739 28 71 phone direct
+41 44 739 21 11 reception

www.wsl.ch

-----"ckan-dev" <ckan-dev-bounces at lists.okfn.org> wrote: -----
To: CKAN Development Discussions <ckan-dev at lists.okfn.org>
From: Tyler Kennedy 
Sent by: "ckan-dev" 
Date: 19.09.2016 19:13
Subject: Re: [ckan-dev] Cannot start CKAN: Import error SOLVED

Speaking of which, I tend to:

export PYTHONDONTWRITEBYTECODE=true

... in all my development virtualenvs to just disable .pyc files entirely. Between the reloader and everything else, recompiling the bytecode each time is a very small penalty for the quality of life improvement. 

On Mon, Sep 19, 2016 at 1:09 PM,  <lucia.espona at wsl.ch> wrote:
 Hi Tim

The issue were caused by some .pyc files that are ignored by git and therefore not deleted when switching branches.
I deleted all the .pyc, reinstalled the extensions and now it works as before.

Thanks,
Lucia


_________________________________________________________
Dr. Lucia Espona Pernas

Swiss Federal Institute for Forest, Snow and Landscape Research WSL
Hauptgebäaude Labortrakt (HL C21)
Zürcherstrasse 111
8903 Birmensdorf
Switzerland

+41 44 739 28 71 phone direct
+41 44 739 21 11 reception

www.wsl.ch

-----"ckan-dev" <ckan-dev-bounces at lists.okfn.org> wrote: -----
To: CKAN Development Discussions <ckan-dev at lists.okfn.org>
From: lucia.espona at wsl.ch
Sent by: "ckan-dev" 
Date: 19.09.2016 18:33
Subject: Re: [ckan-dev] Cannot start CKAN: Import error

Hi Tim

I guess I did not unistall something properly as you said. 
I switched to the latest branch, install the new requirements (pip install). 
As it didn't work, I switched back to my branch with version 2.5.2 and re-installed the requirements. 

Is there something else I can do to get back to my previous state? Is this a problem related to the virtual environment?

Thanks a lot,
Lucia


_________________________________________________________
Dr. Lucia Espona Pernas

Swiss Federal Institute for Forest, Snow and Landscape Research WSL
Hauptgebäaude Labortrakt (HL C21)
Zürcherstrasse 111
8903 Birmensdorf
Switzerland

+41 44 739 28 71 phone direct
+41 44 739 21 11 reception

www.wsl.ch

-----"ckan-dev" <ckan-dev-bounces at lists.okfn.org> wrote: -----
To: CKAN Development Discussions <ckan-dev at lists.okfn.org>
From: Timothy Giles 
Sent by: "ckan-dev" 
Date: 19.09.2016 18:18
Subject: Re: [ckan-dev] Cannot start CKAN: Import error

      Yes Lucia, Config has changed.
 
 
 
 ckan.common.config  is the new config library
 
 pylons.config is the 2.5.2 library
 
 
 
 SO looks like you still have some 2.6 / 2.5.3 (?) code/files floating about. Did you actually uninstall or just install on top of the latest branch?
 
 
 
 Regards Tim
 
 
 
 
  
From: ckan-dev <ckan-dev-bounces at lists.okfn.org> on behalf of lucia.espona at wsl.ch <lucia.espona at wsl.ch>
 Sent: 19 September 2016 06:02 PM
 To: CKAN Development Discussions
 Subject: [ckan-dev] Cannot start CKAN: Import error 
   
Dear all
 
 I had a working instance of CKAN v. 2.5.2.
 I tried the latest version in the git repository just for testing but it failed so I went back to my 2.5.2 branch.
 Now I cannot restart the instance, I installed again the requirements in the virtual environment but I keep getting this ImportError error below.
 
 Does anyone know what can I do?
 
 Thanks a lot,
 Lucia
 
 espona at envidat02:/usr/lib/ckan/default/src/ckan$ . /usr/lib/ckan/default/bin/activate
 (default) espona at envidat02:/usr/lib/ckan/default/src/ckan$ paster serve /etc/ckan/default/development.ini
 Traceback (most recent call last):
   File "/usr/lib/ckan/default/bin/paster", line 11, in <module>
     sys.exit(run())
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 102, in run
     invoke(command, command_name, options, args[1:])
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 141, in invoke
     exit_code = runner.run(args)
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 236, in run
     result = self.command()
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/serve.py", line 284, in command
     relative_to=base, global_conf=vars)
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/serve.py", line 329, in loadapp
     **kw)
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
     return loadobj(APP, uri, name=name, **kw)
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 271, in loadobj
     global_conf=global_conf)
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 296, in loadcontext
     global_conf=global_conf)
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 320, in _loadconfig
     return loader.get_context(object_type, name, global_conf)
   File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 454, in get_context
 ÿÿÿ section)
 ÿ File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 476, in _context_from_use
 ÿÿÿ object_type, name=use, global_conf=global_conf)
 ÿ File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 406, in get_context
 ÿÿÿ global_conf=global_conf)
 ÿ File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 296, in loadcontext
 ÿÿÿ global_conf=global_conf)
 ÿ File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 328, in _loadegg
 ÿÿÿ return loader.get_context(object_type, name, global_conf)
 ÿ File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 620, in get_context
 ÿÿÿ object_type, name=name)
 ÿ File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 646, in find_egg_entry_point
 ÿÿÿ possible.append((entry.load(), protocol, entry.name))
 ÿ File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2258, in load
 ÿÿÿ return self.resolve()
 ÿ File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2264, in resolve
 ÿÿÿ module = __import__(self.module_name, fromlist=['__name__'], level=0)
 ÿ File "/usr/lib/ckan/default/src/ckan/ckan/config/middleware/__init__.py", line 10, in <module>
 ÿÿÿ register your own - be that a set of Shakespeare's works, a global
 ÿ File "/usr/lib/ckan/default/src/ckan/ckan/config/middleware/flask_app.py", line 6, in <module>
 ImportError: cannot import name config
 
 _________________________________________________________
 Dr. Lucia Espona Pernas
 
 Swiss Federal Institute for Forest, Snow and Landscape Research WSL
 Hauptgeb„aude Labortrakt (HL C21)
 Zrcherstrasse 111
 8903 Birmensdorf
 Switzerland
 
 +41 44 739 28 71 phone direct
 +41 44 739 21 11 reception
 
 www.wsl.ch    
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