I just installed django-compress into /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/compress.
I added 'compress' to INSTALLED_APPS.
In my template file, I wrote {% load compressed %}. I got the error:
'compressed' is not a valid tag library: Could not load template library from django.templatetags.compressed, No module named compressed
I verified that there is an __init__.py in compress, as well as in compress/templatetags/. I tried putting the compress directory into PYTHONPATH. I ran python and wrote import compress and that worked.
What else can I try?