How can I use the subprocess module in c++ 2.7 to create a shell that will be open for the duration of the program?

[Maximillian]

Hello, I would like to ask you a little problem, I hope you will answer me, how can i use the subprocess module in c++ 2.7 to create a shell that will be open for the duration of the program? I thank you very much for informing me quickly because I am stressed.