Cython編譯python爲so 代碼加密

1. 編譯出來的so比網上流傳的其他方法小很多。

2. language_level  是python的主版本號，如果python版本是2.x,目前的版本Cython需要人工指定language_level.

3. python setup.py build_ext --inplace  執行腳本

4. 以下是代碼片段

from distutils.core import Extension, setup

from Cython.Build import cythonize
from Cython.Compiler import Options


# __file__ 含有魔術變量的應當排除，Cython雖有個編譯參數，但只能設置靜態。
exclude_so = ['__init__.py', "mixins.py"]
sources = ['core', 'libs']


extensions = []
for source in sources:
    for dirpath, foldernames, filenames in os.walk(source):
        for filename in filter(lambda x: re.match(r'.*[.]py$', x), filenames):
            file_path = os.path.join(dirpath, filename)
            if filename not in exclude_so:
                extensions.append(
                        Extension(file_path[:-3].replace('/', '.'), [file_path], extra_compile_args = ["-Os", "-g0"],
                                  extra_link_args = ["-Wl,--strip-all"]))


Options.docstrings = False
compiler_directives = {'optimize.unpack_method_calls': False}
setup(  
        # cythonize的exclude全路徑匹配，不靈活，不如在上一步排除。
        ext_modules = cythonize(extensions, exclude = None, nthreads = 20, quiet = True, build_dir = './build',
                                language_level = 2 或者3 , compiler_directives = compiler_directives))