Because Go is at least as fast as PyPy or Cython, have a similar coding feeling to Python, have language level concurrency support, and has a clear/consistent d

Because Go is at least as fast as PyPy or Cython, have a similar coding feeling to Python, have language level concurrency support, and has a clear/consistent development roadmap moving forward. PyPy is not really a good example here. It is still highly experimental, takes long time to compile, it's not compatible with quite a few libraries in normal Python, and still has all relative downsides of dynamic typing. To be frank, I don't get the point of using PyPy instead of Go. Previously most Python libraries already use C to optimize critical components. If you can use just one language to get similar performance, why do you bother using two then?