Cython For Appengine

Question

Is it possible to use Cython in appengine (with Python 2.7 specifically)? I could see using it when some code is not performing well, and could use a speed boost by having a statically defined type, or loop optimization, etc...

Answer 1

No, this is very clearly not possible. GAE has very strong restrictions on what you can run inside its sandbox, and one of the most definitively spelled-out restrictions is that you cannot run arbitrary C code:

All code for the Python runtime environment must be pure Python, and not include any C extensions or other code that must be compiled.