auto read multiple files

[Rad]

Hi,

I have about 2500 text files to read (and manipulate) from apx. 625
directories (i.e. 4 files per directory) eg:
C:\Python22\data\ProjectName\001\FileName1.001
				 FileName2.001
				 FileName3.001
				 FileName4.001
C:\Python22\data\ProjectName\002\FileName1.002
				 FileName2.002
				 FileName3.002
				 FileName4.002




C:\Python22\data\ProjectName\625\FileName1.625
				 FileName2.625
				 FileName3.625
				 FileName4.625
I want to apply the same procedure/s to all(625) sets of four files
without having to explicitly specify paths and FileNames, i.e. run the
program and leave it over night to do the work on all 2500 files.
I could create a list of all the file names and use it to access files
4 by 4 but I guess this is not the best way.

Any ideas?

P.S. If it makes things easier I could move all the files into one
directory thus have fixed path. (related sets of 4 files have same
extensions)

P.P.S. Win98/Win2k
       Python2.2.1