Searching a sequence of characters from a string in python

Question

I wanted to ask if there is any way of finding a sequence of characters from a bigger string in python? For example when working with urls i want to find www.example.com from http://www.example.com/aaa/bbb/ccc. If found, it should return True.

Or is there any other way to do so? Thanks in advance!

possible duplicate of [Does Python have a string contains method?](http://stackoverflow.com/questions/3437059/does-python-have-a-string-contains-method) — khelwood, Dec 19 '14 at 20:03

score 8 · Accepted Answer · answered Dec 19 '14 at 19:55

8

Use in to test if one string is a substring of another.

>>> "www.example.com" in "http://www.example.com/aaa/bbb/ccc"
True

answered Dec 19 '14 at 19:55

Kevin

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1

Okay thanks! It was this simple! I was actually trying to use a a.find(b) method which dint work! – hnvasa Dec 19 '14 at 20:07

score 1 · Answer 2 · answered Jul 22 '17 at 19:20

1

I'm showing another way to do this

>>> data = "http://www.example.com/aaa/bbb/ccc"
>>> key = "www.example.com"

>>> if key in data:
...     #do your action here

answered Jul 22 '17 at 19:20

Raihan

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score 0 · Answer 3 · answered Dec 19 '14 at 20:02

There are number of ways to do it:

>>> a = "http://www.example.com/aaa/bbb/ccc"
>>> b = "www.example.com"
>>> if a.find(b) >=0:            # find return position of string if found else -1
...     print(True)
... 
True
>>> import re
>>> if re.search(b,a):              
...     print(True)
... 
True

Searching a sequence of characters from a string in python

3 Answers3

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