Pysycache errors on run

[Da Rock]

Just something for the kids, but I'm wondering how to get this to work?

I've installed from ports, but when I run it from the cli to test it I 
get an error:

Traceback (most recent call last):
   File "/usr/local/bin/pysycache.py", line 442, in <module>
     if __name__ == '__main__': main(const.GWithFullScreen)
   File "/usr/local/bin/pysycache.py", line 266, in main
     myrep = os.path.join(const.GRepPysycache, 
'/usr/local/share/pysycache/help', const.GMyLocale )
   File "/usr/local/lib/python2.7/posixpath.py", line 66, in join
     if b.startswith('/'):
AttributeError: 'NoneType' object has no attribute 'startswith'

Assuming this _does_ actually work, anyone know the trick to getting 
this work?

Cheers