testing_regexp_1.py

import re

regexps = [
    r'\d\d',
    r'^\d\d$',
    r'^\d{2}$',
    r'^\d{2,}$',
    r'^\d{2,3}$',
    r'^\d{2,4}$',
]
values = ["12", "123", "1234"]

for regexp in regexps:
    print "Testing regexp:", regexp
    for s in values:
        print "Matches" if re.match(regexp, s) else "No match",
        print "for value:", s
    print