Cython编译python为so 代码加密示例

1. 编译出来的so比网上流传的其他方法小很多。

2. language_level  是python的主版本号,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  执行脚本

4. 以下是代码片段

from distutils.core import Extension, setup
 
from Cython.Build import cythonize
from Cython.Compiler import Options
 
 
# __file__ 含有魔术变量的应当排除,Cython虽有个编译参数,但只能设置静态。
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全路径匹配,不灵活,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))

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