One of the most popular programming language these days is Python. It is a great save of time because it is possible to pull commands from many libraries that are a snap to use. For that matter, it is so easy that it is easy to make a mistake. To make sure a potential employee is skilled but over-trained in Python, have that person take a Python programming skills test that looks for both proficiency and accuracy.
It is kind of a big deal in Python to be accurate because the machine does not always correct for syntax. This means that errors are not always caught because it is a compact language that is a little lax on rules. It is possible to make a blunder and the compiler still thinks it is normal, so the program runs but not correctly. Having a great skills test can tell you if someone is likely to mess up and how.