However, there is about a 3% chance that the generated string does not contain any digits, which results in an error during account registration because it does not meet the password requirements.

TL;DR

The issue can be fixed by modifying the password generation to ensure it meets the password requirements, possibly by using a more robust password generation method.

Guidance

• Review the password requirements and consider using a library or function that generates passwords meeting specific criteria, such as containing at least one digit.
• Verify the issue by checking the password generation code and testing it with multiple runs to confirm the 3% failure rate.
• Consider adding a check after password generation to ensure it meets the requirements, and if not, regenerate the password.
• Look into using a more reliable method than secrets.token_urlsafe(16) for generating passwords, such as using a combination of character sets (e.g., letters, digits, special characters).

Example

import secrets
import string

def generate_password(length=16):
    characters = string.ascii_letters + string.digits + string.punctuation
    while True:
        password = ''.join(secrets.choice(characters) for _ in range(length))
        if (any(c.islower() for c in password)
                and any(c.isupper() for c in password)
                and any(c.isdigit() for c in password)):
            return password

Notes

The current implementation relies on secrets.token_urlsafe(16), which may not guarantee the generation of a password meeting the specific requirements. The proposed solution aims to increase the reliability of password generation.

Recommendation

Apply workaround: Modify the password generation to use a more robust method, such as the example provided, to ensure generated passwords meet the requirements. This approach addresses the issue without relying on an upgrade to a fixed version, as the problem seems to stem from the password generation method rather than a version-specific bug.