python vs cpython vs cython

• python: 语言
• cpython: Python的解释器，用C实现的，也有用Java实现的Jython
• cython：优化器，将python编译为C语言，提高运行速度
  • superset language
  • python + C extension

install (version 0.29.21)

sudo pip install cython

setup.py

from setuptools import setup
from Cython.Build import cythonize
setup(
name='Hello world app',
ext_modules=cythonize(["hello.py","utils.py","config.py"],annotate=True),
zip_safe=False,
)

python setup.py build_ext --inplace

• build error
• in ~/engine: ERROR: error: [Errno 2] No such file or directory: 'engine/hello.so'
• in ~/engine/tmp: OK
• in `~/engine2': OK
• remove __init__.py solves the problem.