python regex match - http://stackoverflow.com/questions/12870178/looping-through-python-regex-matches

py_re_match.py

import re

s = "ABC12DEF3G56HIJ7"
pattern = re.compile(r'([A-Z]+)([0-9]+)')

# all matches
for (letters, numbers) in re.findall(pattern, s):
    print numbers, '*', letters

# It is better to use re.finditer if you dataset is large:
for m in re.finditer(pattern, s):
    print m.group(1), '*', m.group(0)