Python Syntax Highlighting Bug

What does GitHub use for python syntax highlighting? I’ve found a bug that I’d like to get reported/fixed in whatever library that is used.

Per this github documentation link , they use linguist, and linguist indicates that they use MagicPython in their grammar index.

However, this issue I created for MagicPython indicates that GitHub does not use it for syntax highlighting as GitHub handles it wrong and MagicPython handles it correctly.

I could only put 2 links in the post above, but here is the linguist grammar index.