Python in a Nutshell

Name

search

Synopsis

                        r.search(s,start=0,end=sys.maxint)

Returns an appropriate match object for the leftmost substring of s, starting not before index start and not reaching as far as index end, that matches r. When no such substring exists, search returns None. For example, to print all lines containing digits, one simple approach is as follows:

import re
digs = re.compile(r'\d+')
for line in open('afile.txt'):
    if digs.search(line): print line,