【Python工具】shedskin 把Python翻译成C++

Shed Skin is an experimental Python-to-C++ compiler designed to speed up the execution of computation-intensive Python programs. It converts programs written in a static subset of Python to C++. The C++ code can be compiled to executable code, which can be run either as a standalone program or as an extension module easily imported and used in a regular Python program.

 

其还支持在Python里嵌入C++代码，并一起编译打包。附件为其详细文档。

 

 

以下是一个例子，通过Python求最大子数组之和：

 

 

#encoding:utf-8
def get_max_sub_array_sum(L):
  maxN=L[0]
  sN=L[0]
  for x in L[1:]:
    if sN<0:
      sN=0
    sN+=x
    if sN>maxN:
      maxN=sN
  return maxN

if __name__ == '__main__':
  L=[1,2,3,-2]
  print get_max_sub_array_sum(L)

  L=[1,2,3,-2,1]
  print get_max_sub_array_sum(L)

  L=[1,2,3,-2,3]
  print get_max_sub_array_sum(L)

 

首先安装shedskin, http://code.google.com/p/shedskin/

 

在所在目录执行：

 

>shedskin  max_sub_array_sum

 

结果为在当前目录下生成3个文件，cpp, hpp和Makefile，接着

>make

 

即生成了一个可执行文件，enjoy it!