Skip to content
Related Articles

Related Articles

Python – Wildcard Substring search
  • Last Updated : 22 Apr, 2020

Sometimes, while working with Python Strings, we have problem in which, we need to search for substring, but have some of characters missing and we need to find the match. This can have application in many domains. Lets discuss certain ways in which this task can be performed.

Method #1 : Using re.search()
This is one of the way in which this task can be performed. In this, we feed the regex compile with the substring and search for it using main string in search().

filter_none

edit
close

play_arrow

link
brightness_4
code

# Python3 code to demonstrate working of 
# Wildcard Substring search
# Using re.search()
import re
      
# initializing string
test_str = 'geeksforgeeks is best for geeks'
  
# printing original string
print("The original string is : " + str(test_str))
  
# initializing Substring
sub_str = '..st'
  
# Wildcard Substring search
# Using re.search()
temp = re.compile(sub_str) 
res = temp.search(test_str)
  
# printing result 
print("The substring match is : " + str(res.group(0))) 

chevron_right


Output :

The original string is : geeksforgeeks is best for geeks                                                                
The substring match is : best     

 

Method #2 : Using re.finditer()
This is yet another way to solve this problem. In this, we can also extract the position of match if required.



filter_none

edit
close

play_arrow

link
brightness_4
code

# Python3 code to demonstrate working of 
# Wildcard Substring search
# Using re.finditer()
import re
      
# initializing string
test_str = 'geeksforgeeks is best for geeks'
  
# printing original string
print("The original string is : " + str(test_str))
  
# initializing Substring
sub_str = '..st'
  
# Wildcard Substring search
# Using re.finditer()
temp = re.compile(sub_str) 
res = temp.search(test_str)
  
# printing result 
print("The substring match is : " + str(res.group(0))) 

chevron_right


Output :

The original string is : geeksforgeeks is best for geeks                                                                
The substring match is : best     

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.

My Personal Notes arrow_drop_up
Recommended Articles
Page :