You can indeed do that, and there are other ways to speed up Python (PyPy, Cython, or even just writing more efficient Python code). However, the problem is tha

You can indeed do that, and there are other ways to speed up Python (PyPy, Cython, or even just writing more efficient Python code). However, the problem is that you now have to write C. A lot of the slowness in Python probably comes from the many memory allocations all over the place. Go gives you a lot of control over allocations even though it is a garbage collected language. These slides posted by another commenter has some good points about why Python is so slow: https://speakerdeck.com/alex/why-python-ruby-and-javascript-are-slow https://speakerdeck.com/alex/why-python-ruby-and-javascript-... Interestingly, there was actually a talk at PyCon US 2016 about using Go's http server in Python via C. https://www.youtube.com/watch?v=CkDwb5koRTc https://www.youtube.com/watch?v=CkDwb5koRTc