run length encoding exercise

Author: Dan Finn

rpn.py renamed to reverse_polish_notation.py

@@ -0,0 +1,17 @@
+#!/usr/bin/python
+from collections import OrderedDict
+
+input = raw_input("Please enter in some text to be compressed: ")
+
+def runlengthencode(input):
+  dict=OrderedDict.fromkeys(input,0)
+
+  for char in input:
+    dict[char] += 1
+
+  output=''
+  for k,v in dict.iteritems():
+    output = output + k + str(v)
+  return output
+
+print runlengthencode(input)