class needs to refer a different class

[Skaperen]

here is a script i have made into a command named zhash on my laptop that uses zopen.
http://ipal.net/python/zhash.py
this command hashes each file in an uncompressed form even if it is compressed in the file system as long as the name shows the compression stack. zhash also uses ftrgen (a generator that flattens a file tree).
http://ipal.net/python/ftrgen.py