snippet.py

import sys
import re

changes_re = re.compile('^(\-{3}|\+{3}) (.+)\s+\d{4}\-\d{2}-\d{2}.*$')
lines = open(sys.argv[0], 'r').readlines()

diffs = {}
last_path = ''
for line in lines:
  path = changes_re.findall(line)
  
  if len(path):
    last_path = path[0][1]
    diffs[last_path] = {'mode': path[0][0][0], 'diff': ''}
  
  if len(last_path):
    diffs[last_path]['diff'] += line

print diffs[last_path]