ImportError: No module named pkg_resources

[Ken]

Hi,

I'm running Ubuntu 10.04, Python 2.6.5, and get the above error message when I try to start the program. I got an error on the install:

/home/coconino$mnemosyne
'import site' failed; use -v for traceback
Traceback (most recent call last):
  File "/usr/local/bin/mnemosyne", line 4, in <module>
    import pkg_resources
ImportError: No module named pkg_resources

I had earlier received the following error on the install:

Processing Mnemosyne-2.2.1-py2.6.egg
removing '/usr/local/lib/python2.6/dist-packages/Mnemosyne-2.2.1-py2.6.egg' (and everything under it)
creating /usr/local/lib/python2.6/dist-packages/Mnemosyne-2.2.1-py2.6.egg
Extracting Mnemosyne-2.2.1-py2.6.egg to /usr/local/lib/python2.6/dist-packages
SyntaxError: ('invalid syntax', ('/usr/local/lib/python2.6/dist-packages/Mnemosyne-2.2.1-py2.6.egg/mnemosyne/libmnemosyne/databases/SQLite.py', 576, 55, '            existing_tag_for_name = {tag.name : tag for tag in self.tags()}\n'))

Mnemosyne 2.2.1 is already the active version in easy-install.pth
Installing mnemosyne-webserver script to /usr/local/bin
Installing mnemosyne script to /usr/local/bin

Installed /usr/local/lib/python2.6/dist-packages/Mnemosyne-2.2.1-py2.6.egg
Processing dependencies for Mnemosyne==2.2.1
Finished processing dependencies for Mnemosyne==2.2.1

I noticed from other posts that this error is often connected to setuptools, so here is the apt-get on that:

/home/coconino$sudo apt-get install python-pkg-resources
Reading package lists... Done
Building dependency tree      
Reading state information... Done
python-pkg-resources is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
/home/coconino$sudo apt-get install python-setuptools  
Reading package lists... Done
Building dependency tree      
Reading state information... Done
python-setuptools is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Finally, I should note that I have several versions of python installed. but none are old:

/home/coconino$ls -l /usr/bin/*python*
-rwxr-xr-x 1 root root    7805 2010-02-22 12:56 /usr/bin/dh_python
-rwxr-xr-x 1 root root      94 2014-02-27 20:13 /usr/bin/idle-python2.6
-rwxr-xr-x 1 root root      94 2012-10-23 21:46 /usr/bin/idle-python3.1
-rwxr-xr-x 1 root root     983 2010-04-25 04:20 /usr/bin/ipython
-rwxr-xr-x 1 root root     331 2010-04-25 04:20 /usr/bin/ipython2.6
-rwxr-xr-x 1 root root     316 2010-04-25 04:20 /usr/bin/ipython-wx
-rwxr-xr-x 1 root root     227 2010-04-25 04:20 /usr/bin/ipythonx
lrwxrwxrwx 1 root root      18 2014-03-24 20:37 /usr/bin/python -> /usr/bin/python2.6
lrwxrwxrwx 1 root root       9 2013-09-21 15:51 /usr/bin/python2 -> python2.6
-rwxr-xr-x 1 root root     178 2009-06-02 13:54 /usr/bin/python2.5-pyrexc
-rwxr-xr-x 1 root root 2292528 2014-02-27 20:16 /usr/bin/python2.6
lrwxrwxrwx 1 root root       9 2013-09-21 15:51 /usr/bin/python2.6.5 -> python2.6
-rwxr-xr-x 1 root root    1452 2014-02-27 20:13 /usr/bin/python2.6-config
-rwxr-xr-x 1 root root 4921250 2014-02-27 20:13 /usr/bin/python2.6-dbg
-rwxr-xr-x 1 root root    1456 2014-02-27 20:13 /usr/bin/python2.6-dbg-config
-rwxr-xr-x 1 root root     178 2009-06-02 13:54 /usr/bin/python2.6-pyrexc
-rwxr-xr-x 1 root root 2563016 2014-02-04 17:09 /usr/bin/python2.7
lrwxrwxrwx 1 root root       9 2010-12-15 19:43 /usr/bin/python3 -> python3.1
-rwxr-xr-x 1 root root 2465316 2012-10-23 21:48 /usr/bin/python3.1
-rwxr-xr-x 1 root root 5835831 2012-10-23 21:28 /usr/bin/python3.1-dbg
-rwxr-xr-x 1 root root    1433 2012-10-23 21:46 /usr/bin/python3.1-dbg-config
lrwxrwxrwx 1 root root      13 2013-11-23 19:13 /usr/bin/python3-dbg -> python3.1-dbg
lrwxrwxrwx 1 root root      20 2013-11-23 19:13 /usr/bin/python3-dbg-config -> python3.1-dbg-config
lrwxrwxrwx 1 root root      30 2013-03-10 16:24 /usr/bin/pythoncad -> ../share/pythoncad/gtkpycad.py
lrwxrwxrwx 1 root root      16 2013-09-21 15:51 /usr/bin/python-config -> python2.6-config
lrwxrwxrwx 1 root root      13 2013-11-23 19:12 /usr/bin/python-dbg -> python2.6-dbg
lrwxrwxrwx 1 root root      20 2013-11-23 19:12 /usr/bin/python-dbg-config -> python2.6-dbg-config

and the default is 2.6.5, which has developed an error on even being invoked:

/home/coconino$python -v
# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
'import site' failed; traceback:
ImportError: No module named site
Python 2.6.5 (r265:79063, Feb 27 2014, 19:44:14)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

Thanks for any help,
Ken

[Peter Bienstman]

Hi,

No need to keep on resending the same info :-)

Have you already tried 'sudo apt-get install mnemosyne'?

Cheers,

Peter

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[Ken]

Hi Peter,

I tried it, it ran, but still no mnemosyne.

====
An unexpected error has occurred.
Please forward the following info to the developers:

Traceback (innermost last):
File "/usr/local/bin/mnemosyne", line 5, in <module>
pkg_resources.run_script('Mnemosyne==2.2.1', 'mnemosyne')
File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 461, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 1194, in run_script
execfile(script_filename, namespace, namespace)
File "/usr/local/lib/python2.6/dist-packages/Mnemosyne-2.2.1-py2.6.egg/EGG-INFO/scripts/mnemosyne", line 155, in <module>
debug_file=options.debug_file)
File "/usr/local/lib/python2.6/dist-packages/Mnemosyne-2.2.1-py2.6.egg/mnemosyne/libmnemosyne/__init__.py", line 164, in initialise
self.register_components()
File "/usr/local/lib/python2.6/dist-packages/Mnemosyne-2.2.1-py2.6.egg/mnemosyne/libmnemosyne/__init__.py", line 215, in register_components
exec("from %s import %s" % (module_name, class_name))
File "<string>", line 1, in <module>
File "/usr/local/lib/python2.6/dist-packages/Mnemosyne-2.2.1-py2.6.egg/mnemosyne/libmnemosyne/databases/SQLite.py", line 576

existing_tag_for_name = {tag.name : tag for tag in self.tags()}

====

I even tried apt-get remove and purge, then install again. Each time the result was the same. Also, I uninstalled all pythons except 2.6.5 (the default install with Ubuntu). That at least got rid of the error/warning on starting python.

Thanks,
Ken

[Peter Bienstman]

Hi,

Either upgrade Python to 2.7, or, now that you've got most of the dependencies installed, use the 2.3 release candidate I posted on this forum. You will need to install webob first, though.

Cheers,

Peter

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