Simple "which" implementation in python featuring partial matching

which.py

#!python.exe
"""which command substitute with partial matching search"""
import glob
import os
import sys

try:
    partial_fname = sys.argv[1]
except IndexError:
    print "which.py <filename>"
    sys.exit(1)

results = {'partial': [], 'exact': []}
path_list = ["."] + [path.rstrip().lstrip() for path in os.environ["PATH"].split(";")]
for d in path_list:
    try:
        full_name = os.path.join(d,partial_fname)
        os.stat(full_name)
        results['exact'].append(full_name)
    except:
        # partial matching
        all_files = glob.glob(os.path.join(d, "*%s*" % partial_fname))
        for f in all_files:
            results['partial'].append(f)

for f in results['exact']:
    print "  %s" % f

for f in results['partial']:
    print "P %s" % f