Python subprocess get children's output to file and terminal?

Question

I\'m running a script that executes a number of executables by using

subprocess.call(cmdArgs,stdout=outf, stderr=errf)

when outf

Answer 1

You could use something like this: https://github.com/waszil/subpiper

In your callbacks you can do whatever you like, log, write to file, print, etc. It also supports non-blocking mode.

from subpiper import subpiper

def my_stdout_callback(line: str):
    print(f'STDOUT: {line}')

def my_stderr_callback(line: str):
    print(f'STDERR: {line}')

my_additional_path_list = [r'c:\important_location']

retcode = subpiper(cmd='echo magic',
                   stdout_callback=my_stdout_callback,
                   stderr_callback=my_stderr_callback,
                   add_path_list=my_additional_path_list)