Print most used words. Change the filename 'input' to another one to load files. Plain text only

words.py

#!/usr/bin/python3

content = ""
with open('input', 'r') as content_file:
    content = content_file.read()

words = {}
for word in content.split():
	if word in words:
		words[word] = words[word] + 1
	else:
		words[word] = 1

for count, word in sorted( ((v,k) for k,v in words.items()), reverse=True):
	print ("%s: %d" % (word, count))