Python: Matches a string that has an a followed by one or more b's

Last update on April 23 2025 12:54:26 (UTC/GMT +8 hours)

3. a Followed by 1+ b's

Write a Python program that matches a string that has an a followed by one or more b's.

Sample Solution:

Python Code:

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

print(text_match("ab"))
print(text_match("abc"))

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 start with 'a' and are followed by at least one 'b', then display the matched portion.
• Write a Python script to filter a list of strings, returning only those that match the pattern 'a' followed by one or more 'b's.
• Write a Python program that uses a regex to check if an input string conforms to the pattern 'a' followed by one or more 'b's, and print True or False.
• Write a Python program to extract all substrings from a text that match 'a' followed by one or more 'b's.

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