Pytho one line file match in directory

file_match.py

# Find files in the current directory that do not contain a '.'
(item for sublist in ((os.path.join(r,f) for f in fs if '.' not in f) for r, _, fs in os.walk('.')) for item in sublist if os.path.isfile(item))

# Add '.log' to the end of any file that has no extension. Probably easier with `rename` command :|
[shutil.move(src, '%s.log' % src) for src in (item for sublist in ((os.path.join(r,f) for f in fs if '.' not in f) for r, _, fs in os.walk('.')) for item in sublist if os.path.isfile(item))]