在同一实例中执行多个Shell /命令提示符命令

Question

I am looking for a way to execute multiple commands in the same shell instance using a separate function for each, something that I can define when the shell process opens/closes and can pass commands to. so far all the answers I have found have only been in a single function

ie:

#!/usr/bin/env python
from subprocess import check_call

check_call(r"""set -e
ls -l
<some command> # This will change the present working directory 
launchMyApp""", shell=True)

I need the same effect but with each command in a different function like

shell.open()
shell.exec("dir")
shell.exec("cd C:/Users/" + User + "/Desktop)
shell.close()

if you are wondering whyyy it has to be separate the command to run is coming from user input. yes I realize that is a security risk, but security isn't a problem in this case, as its purely an educational venture and not going to be used for anything

Answer 1

you could use subprocess.check_call(cmds_str, shell=True) in conjunction with multiple commands in the same line: How to run two commands in one line in Windows CMD?

You could build each command individually and add them to a list, and then use ' & '.join(cmd_list) to get cmds_str .

Answer 2

I don't use Windows but it works on Linux.

You can try pexpect with cmd.exe

import pexpect

child = pexpect.spawn("cmd.exe")

child.expect_exact("> ")
#print(child.before.decode('utf-8'))
print(child.before)

child.sendline("dir")
child.expect_exact("> ")
print(child.before)

child.sendline("cd C:/Users/" + User + "/Desktop")
child.expect_exact("> ")
print(child.before)

It runs cmd.exe , sends command in child.sendline() and looks for prompt child.expect_exact("> ") to get all text generated by command child.before .