python编译成c语言-cython编译Python为c语言

第一种办法:

执行命令:cython test.py

结果:会在同一目录下面生成test.c文件

执行命令: gcc -c -fPIC -I /usr/include/python2.7 test.c

结果: 在同一目录下面生成test.o文件

执行命令: gcc -shared test.o -c test.so

结果: 在同一目录下面生成test.so文件

最后,生成的test.so文件就是需要的文件

第二种办法:

[setup.py]

from distutils.core import setup

from Cython.Build import cythonize

setup(

name = "test",

ext_modules = cythonize("test.py")

)

执行命令: python setup.py build_ext --inplace

第二种办法是对单独文件进行编译,下面介绍一种批量的办法:

#-*- coding:utf-8 -*-_

import os

import re

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", "run.py"]

sources = "backend"

extensions = []

remove_files = []

for source,dirnames,files in os.walk(sources):

for dirpath, foldernames, filenames in os.walk(source):

if "test" in dirpath:

break;

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"]))

remove_files.append(file_path[:-3]+".py")

remove_files.append(file_path[:-3]+".pyc")

Options.docstrings = False

compiler_directives = {"optimize.unpack_method_calls": False, "always_allow_keywords": True}

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, compiler_directives = compiler_directives))

# 删除py和pyc文件

for remove_file in remove_files:

if os.path.exists(remove_file):

os.remove(remove_file)

执行命令: python setup.py build_ext --inplace

结果:最后生成.so文件,删除中间结果。

重点提一下,在编译flask代码时,遇到问题,报错:参数不够(大体意思是这样,错误未截图),在compiler_directives中添加: {always_allow_keywords:True}

原文地址:https://www.cnblogs.com/zhangjxblog/p/12168360.html

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