Your final tests should also include some fixed tests, just like in "Sample tests" section.

Description states that numbers will be positive, yet random tests are also generating negative numbers. To make things worse, it's not documented how such case should be handled.

Exact duplicate of https://www.codewars.com/kata/54fb963d3fe32351f2000102

[Python] Some issues with the current setup:

• Function naming does not follow PEP 8 convention
• The task is trivial and solvable by directly invoking the equivalent library function
• Lacking tests for edge cases (e.g. n = 0) and random tests

Please see Creating your first Kata for a comprehensive guide on how to author a high-quality Kata.