Python: Matches a string that has an a followed by three 'b'

Last update on April 23 2025 12:59:54 (UTC/GMT +8 hours)

5. a Followed by Exactly 3 b's

Write a Python program that matches a string that has an a followed by three 'b'.

Sample Solution:

Python Code:

import re
def text_match(text):
        patterns = 'ab{3}?'
        if re.search(patterns,  text):
                return 'Found a match!'
        else:
                return('Not matched!')

print(text_match("abbb"))
print(text_match("aabbbbbc"))

Sample Output:

Found a match!                                                                                                
Found a match!

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to match strings that contain an 'a' immediately followed by exactly three 'b's.
• Write a Python script to filter a list of strings to return only those that have the pattern 'abbb'.
• Write a Python program to check whether a string exactly matches the pattern 'abbb' and print the result.
• Write a Python program to extract and print all substrings that match an 'a' followed by exactly three 'b's from a given text.

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• Python Regular Expression Exercises Home ↩
• Python Exercises Home ↩

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Python Code Editor:

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