I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.
The tests have been written for Javascript.
You can’t do these challenges on the FCC platforum using python.
Good news is that you can still do these challenges through other channels like Project Euler