It Gets Easier. You Have To Do It Every Day. That's The Hard Part, But It Does Get Easier
Python 2
Runtime settings
We use pypy 2.7.18 to run your program with the following command:
$ pypy '{mainfile}'
{mainfile}is the entrypoint file (you can specify which file this is when submitting).
File extensions
Files with any of the following file extensions will be used: .py, .py2
Additional information
Additional language-specific advice and information for many languages is available in the knowledge base