Check Password Strength
Password validation practices combined boolean conditions over text.
What is Check Password Strength?
Password validation practices combined boolean conditions over text.
Validate several basic password requirements.
When should you use it?
- Learn Python syntax through a practical example.
- Build a foundation for larger programming problems.
- Test an idea quickly without a local setup.
Example code
main.py
password = "CodeUtility2026"
# Require length and three different character classes.
strong = (
len(password) >= 12
and any(character.islower() for character in password)
and any(character.isupper() for character in password)
and any(character.isdigit() for character in password)
)
print(f"strong={strong}")Expected output
strong=TrueHow it works
The checks require sufficient length plus lowercase, uppercase, and numeric characters.
Change the values and run the program in the CodeUtility online Python compiler without installing Python locally.
Practice exercises
Modify the runnable example with the exercises below to build understanding beyond copying the result.
- Change the input and predict the output before running.
- Handle empty or invalid input.
- Wrap the logic in a function and add more test cases.