w3resource

Python: Find sequences of lowercase letters joined with a underscore


Write a Python program to find sequences of lowercase letters joined by an underscore.

Sample Solution:

Python Code:

import re
def text_match(text):
        patterns = '^[a-z]+_[a-z]+$'
        if re.search(patterns,  text):
                return 'Found a match!'
        else:
                return('Not matched!')

print(text_match("aab_cbbbc"))
print(text_match("aab_Abbbc"))
print(text_match("Aaab_abbbc"))

Sample Output:

Found a match!                                                                                                
Not matched!                                                                                                  
Not matched!

Pictorial Presentation:

Python: Regular Expression - Find sequences of lowercase letters joined with a underscore.
Python: Regular Expression - Find sequences of lowercase letters joined with a underscore.

Flowchart:

Flowchart: Regular Expression - Find sequences of lowercase letters joined with a underscore.

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program that matches a string that has an a followed by two to three 'b'.
Next: Write a Python program to find sequences of one upper case letter followed by lower case letters.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.