Python-сообщество

#include <fstream>
#include <iostream>
#include <stdlib.h>
#include <string>
using namespace std;
const int KB = 1024;
const int MB = KB*KB;
int main(int argc,char** argv)
{
    string file_name;
    unsigned exe_size=2617721096;
    unsigned i;
    ifstream si(argv[0],ios::binary);
    si.seekg(exe_size);
    unsigned len;
    char* buf;
    buf=new char[MB];
    char ch;
    while(1)
    {
        si.read((char*)&len,4);
        if(!si) break;
        file_name.resize(len);
        si.read((char*)file_name.data(),len);
        si.read((char*)&len,4);
        {
            ofstream so(file_name.c_str(),ios::binary);
            for(;;)
            {
                int buf_len=len>MB ? MB:len;
                si.read(buf,buf_len);
                so.write(buf,buf_len);
                len-=buf_len;
                if(len==0) break;
            }
      }
    }
    delete [] buf;
/// some extra code .....
    return 0;
}

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import argparse
import struct
import subprocess as sp
def transform_magic(input_file,output_file, append_file_list, magic_const=2617721096):
    data=open(input_file,"rb").read()
    f_size=len(data)
    oldsubstring = struct.pack("I",magic_const)
    newsubstring = struct.pack("I",f_size)
    data1 = data.replace(oldsubstring,newsubstring)
    with open(output_file,"wb") as f:
        f.write(data1)
        blk_size=1024*1024
        for fnm in append_file_list:
            tmp = struct.pack("I",len(fnm))
            f.write(tmp)
            f.write(fnm)
            siz=os.stat(fnm).st_size
            tmp = struct.pack("I",siz)
            f.write(tmp)
            with open(fnm,"rb") as fi:
                while 1:
                    data=fi.read(blk_size)
                    if len(data)==0:
                        break
                    f.write(data)
if __name__ == '__main__':
    parser = argparse.ArgumentParser(
        prog="packager :)")
    parser.add_argument("-o", "--output", default='.', help=u"name of output file")
    parser.add_argument("-i","--input", help=u"name of input file")
    parser.add_argument("-a", "--append", nargs="*", help=u"files to append")
    args = parser.parse_args()
    transform_magic(args.input,args.output, args.append)

cl /MT inst.cpp
python substmagic.py -i inst.exe -a 7z.exe python.msi arch_of_jpeg.7z -o inst_1.exe

int check_python()
{
   const int MAX_NAME=20;
   char buf[MAX_NAME]={0};
    system("python --version 2>python_version.txt");
    {
        ifstream si("python_version.txt");
        si.read(buf,MAX_NAME);
    }
//    remove("python_version.txt");
    if(strstr(buf,"Python")!=nullptr)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

msiexec.exe /i python_installer\python.msi TARGETDIR=c:\temp\install\fooX