re pattern matching in python code example

Example 1: python pattern matching example

import re
pattern = re.compile('[a-zA-Z ]+')		# a...z A...Z and space allowed
message = "Weather is nice"
if pattern.match(message).group() == message:
    print("match")
else:
    print("no match")

Example 2: Python Regex documentation\

>>> import re
>>> m = re.search('(?<=abc)def', 'abcdef')
>>> m.group(0)
'def'