Python - Search and Match


Using regular expressions there are two fundamental operations which appear similar but have significant differences. The re.match() checks for a match only at the beginning of the string, while checks for a match anywhere in the string. This plays an important role in text processing as often we have to write the correct regular expression to retrieve the chunk of text for sentimental analysis as an example.

import re

if"tor", "Tutorial"):
        print "1. search result found anywhere in the string"
if re.match("Tut", "Tutorial"):
         print "2. Match with beginning of string" 
if not re.match("tor", "Tutorial"):
        print "3. No match with match if not beginning" 

# Search as Match
if  not"^tor", "Tutorial"):
        print "4. search as match"

When we run the above program, we get the following output −

1. search result found anywhere in the string
2. Match with beginning of string
3. No match with match if not beginning
4. search as match

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