cauabernardino/passvalid

Password Validator module made with Python 3.

Python

Password Validator

Password Validator module that validates passwords with the given requirements.

It goes through each requirement in order and stops in the first one that does not match or when it validates all of them.

Made with native Python modules only.

Example

You can run the passwords.py file for an example with:

# Windows
python passwords.py

# Linux
python3 passwords.py

How to run

Import the validator

from passvalid.validator import validator

Set the requirements. They must be a list of tuples with the following format:

requirements = [
    ('LEN', '>', 8),
    ('NUMBERS', '<', 10),
    ('LETTERS', '>',  5),
    ('SPECIALS', '=', 3)
]

Where:

First value:
- LEN – password length
- LETTERS – # of letters
- NUMBERS – # of numbers1
- SPECIALS – # of special characters
Second value: <, > or =
Third value: an integer number

Call it with the password and requirements

print(validator(password, requirements))

It returns a INFO message and the status of the password (Valid or Invalid):

# Using the requirements shown in Step 2

# Example of valid password
password = 'tests123a*)!'

INFO: The password matches the requirements.
VALID PASSWORD.


# Example of invalid password
password = 'tests123'

INFO: Length does not match the requirements.
INVALID PASSWORD.

Testing

Set the test parameters in test_parameters.py
Run the tests with

# Windows
python tests.py -v

# Linux
python3 tests.py -v