Copyright and license
How much of the code in this repository is copied directly from https://github.com/python/cpython ? Have you acknowledged the source? Have you adhered to the license terms for that code?
Very few files of cpython are used here, and I'm to acknowledge the source clearly and add the license information according to the requests of PSF.
Your project is clearly licensed MIT, which isn't compatible with including code from CPython. May want to check that out.
My recommendation is to simply fork the repository and add your own changes. Then all previous authors are automatically acknowledged, you automatically have the right copyright and license documents, etc. Plus, anyone can easily see what changes you've made.
You're absolutely right, however the whole project is so big and I just use very few files of it. May I follow the solution of cryptography project?
IANAL, so don't ask my permission/advice for specifics like that.
But you're basically making a modified version of CPython, aren't you? That seems like the perfect situation for a repository fork.
Alright, I'll make it later.