Python Regular Expression example

Question

I want to write a simple regular expression in Python that extracts a number from HTML. The HTML sample is as follows:

Your number is 123
         


        

Answer 1

import re
found = re.search("your number is (\d+)", "something.... Your number is 123 something...")

if found:
    print found.group()[0]

Here (\d+) is the grouping, since there is only one group [0] is used. When there are several groupings [grouping index] should be used.