Python: Find the sequences of one upper case letter followed by lower case letters

Last update on March 31 2025 12:57:33 (UTC/GMT +8 hours)

8. Uppercase Followed by Lowercase

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

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("AaBbGg"))
print(text_match("Python"))
print(text_match("python"))
print(text_match("PYTHON"))
print(text_match("aA"))
print(text_match("Aa"))

Sample Output:

Found a match!
Found a match!
Not matched!
Not matched!
Not matched!
Found a match! 

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to find sequences that start with a single uppercase letter followed by one or more lowercase letters.
• Write a Python script to extract from a text all words that match the pattern of an uppercase letter followed by lowercase letters.
• Write a Python program to validate that each word in a list begins with a capital letter followed by only lowercase letters.
• Write a Python program to search for and replace words that match an uppercase letter followed by lowercase letters with their reversed form.

Python Code Editor:

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