/tag Regular expression in Python /tag My code below doesn't recognize the pattern

Question

My regular expression in Python below doesn't see the pattern. Can you please tell me what I am doing wrong here?

================

import re

l = 'rootfs on / type rootfs (rw xyz'
m_obj = re.match(r'on / type .*? \(rw', l)

if m_obj:
    print "Found!"
else:
    print "Not found!"

=================

Thanks

score 2 · Answer 1 · answered Dec 01 '15 at 10:42

have a look at the documentation of the re module - especially the difference between match and search. what you should use here is search (your regex does not match the whole string):

import re

l = 'rootfs on / type rootfs (rw xyz'
m_obj = re.search(r'on / type .*? \(rw', l)

if m_obj:
    print "Found!"
else:
    print "Not found!"

score 1 · Accepted Answer · answered Dec 01 '15 at 10:43

1

match, start matching from the beginning of string

you need to use search. It should be:

re.search(r'on / type .*? \(rw', l)

answered Dec 01 '15 at 10:43

Hackaholic

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Thanks for all the answers. – user1972031 Dec 01 '15 at 11:59

score 1 · Answer 3 · answered Dec 01 '15 at 10:49

1

In fact match starts from the beginning of string- so try

import re

l = 'rootfs on / type rootfs (rw xyz'
m_obj = re.match(r'.*?on / type .*? \(rw', l)

if m_obj:
    print "Found!"
else:
    print "Not found!"

answered Dec 01 '15 at 10:49

Learner

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/tag Regular expression in Python /tag My code below doesn't recognize the pattern

3 Answers3