gistfile1.py

#!/usr/bin/python
import sys
from collections import Counter
 
try:
    with open(sys.argv[1], 'r') as f:
        c = Counter(l.rstrip('\r\n') for l in f.readlines())
except IndexError:
    print "Usage: ./count.py [infile]"
except IOError:
    print 'failed to open %s' % infile
else:
    for k in c:
        print '"%s" occurrences: %s' % (k, c[k])