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Python Exercises

Python: Find sequences of lowercase letters joined with a underscore

Python Regular Expression: Exercise-7 with Solution

Write a Python program to find sequences of lowercase letters joined with a 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!

Flowchart:

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

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Next: Write a Python program to find sequences of one upper case letter followed by lower case letters.

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