Youtube video ID from youtube urls or from youtube embeded code (the old one or the new one)

yre.py

# Finds the youtube video id from youtube urls or from 
# youtube embeded code (the old one and the new one)

import re

exp = re.compile(r"""
    (
        youtu.be/|youtube(-nocookie)?.com/
        (
            watch\?(.*&)?v=|(embed|v)/
        )
    )
    (?P<video_id>[^\?&"\'>]+)
    """, re.X)


def find_it(s):
    m = re.search(exp, s)
    if m:
        print m.group('video_id')

find_it('http://www.youtube.com/watch?v=Qi_ltajxQKE')
# Qi_ltajxQKE
find_it('http://youtu.be/ZFqlHhCNBOI')
# ZFqlHhCNBOI
find_it('<iframe src="http://www.youtube.com/embed/ZFqlHhCNBOI">')
# ZFqlHhCNBOI
object_str = (
    '<object width="560" height="315"><param name="movie" '
    'value="https://www.youtube-nocookie.com/v/Qi_ltajxQKE?version=3&amp;hl=en_US">'
    '</param><param name="allowFullScreen" value="true"></param>'
    '<param name="allowscriptaccess" value="always"></param>'
    '<embed src="https://www.youtube-nocookie.com/v/Qi_ltajxQKE?version=3&amp;hl=en_US"'
    ' type="application/x-shockwave-flash" width="560" height="315" '
    'allowscriptaccess="always" allowfullscreen="true"></embed></object>'
)
find_it(object_str)
# Qi_ltajxQKE