I have a similar problem, and I am unsure how the remedy previously 
outlined in this thread works, or if it applies to my situation. I am 
trying to install Mnemosyne 2.3.1 on my Mac running Snow Leopard. I am 
currently running Mnemosyne 2.2. I believe I have upgraded from a previous 
Mnemosyne version, because I have in my Library folder both Mnemosyne and 
Mnemosyne_1 directories. I am very hesitant to mess with these, since I 
have been a Mnemosyne user for many years and I have thousands of cards. My 
main interest in upgrading was to use sync to backup my database and not 
lose learning data. (I tried a while back to import into the newer version 
of Mnemosyne running on a Debian machine, and I couldn't get it to work. I 
thought syncing would be better than import/export) 

I first followed the instructions at 
http://mnemosyne-proj.org/os-x-installation , but when I looked at the 
README that came in the tarball and the final instructions were different. 
I went with the README, which in retrospect seems like a mistake. Instead 
of running 'sudo make osx' in the unpacked source directory, I ran 'sudo 
port select python python27', then 'python setup.py install' as root. When 
I try to run the program by typing 'mnemosyne,' I get the following errors:

Traceback (innermost last):
  File "/usr/local/bin/mnemosyne", line 5, in <module>
    pkg_resources.run_script('Mnemosyne==2.3.1', 'mnemosyne')
  File 
"/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py",
 
line 442, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File 
"/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py",
 
line 1167, in run_script
    exec script_code in namespace, namespace
  File 
"/Library/Python/2.6/site-packages/Mnemosyne-2.3.1-py2.6.egg/EGG-INFO/scripts/mnemosyne",
 
line 101, in <module>
 ImportError: No module named PyQt4.QtGui
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==2.3.1', 'mnemosyne')
  File 
"/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py",
 
line 442, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File 
"/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py",
 
line 1167, in run_script
    exec script_code in namespace, namespace
  File 
"/Library/Python/2.6/site-packages/Mnemosyne-2.3.1-py2.6.egg/EGG-INFO/scripts/mnemosyne",
 
line 101, in <module>
 ImportError: No module named PyQt4.QtGui

When I open IDLE, I have no problem importing the PyQt4.QtGui module.

Do I need to retrace my steps and follow the instructions at 
http://mnemosyne-proj.org/os-x-installation ? If so, is there an uninstall 
script? Or is there some other problem?

I appreciate your help.

J

On Tuesday, August 30, 2011 at 5:48:54 PM UTC-5, Patrick Kenny wrote:
>
> The latest version installed properly!  
>

> Thank you! 
>
>
> Patrick 
>
> On 8月31日, 午前3:48, Peter Bienstman <[email protected]> wrote: 
> > > > Can you restore your 
>  u'/Volumes/Ocean/Users/patrick/Library/Mnemosyne 
> > > > directory to what it was before the update, and help me debug some 
> things 
> > > > here? 
> > 
> > > Actually, Mnemosyne was never installed on this Mac 
> > 
> > Ah, that's probably the reason. Could you delete the Library/Mnemosyne 
> and 
> > Library/Mnemosyne_1 and try again with the latest version? 
> > 
> > > > mnemosyne/mnemosyne/libmnemosyne/upgrades/upgrade1.py 
> > 
> > > I executed this script manually but it didn't seem to do anything. (I 
> > > assume it shouldn't, since I have no Mnemosyne data.) 
> > 
> > Actually, I was referring to doing some debugging by adding some print 
> > statements to that file, etc, ..., but I think the latest commit fixes 
> this. 
> > 
> > Peter

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