Testy3.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Fri Jul 30 10:12:08 2021

@author: user
"""
import os
import io
import subprocess
cmd=['python','-u','/home/user/tutorial/GitDir/Microphonics/Testy2.py']


try:
    
    process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, bufsize=1, shell=False)
    while True:
        output = process.stdout.readline().decode()
        if output == '' and process.poll() is not None:
            break
        if output !='':
            print(output)
#            for line in process.stdout:
#     while process.poll() is None:
#         line = process.stdout.readline()
#         print ("test:", line)
#         if not line:
#             break
# #                  the real code does filtering here
# #        output=line.decode()
# #        print ("test:", line)
# #                self.ui.AcqProg.setText(output)

    return_code = process.poll()
    if return_code==0:
#                self.ui.AcqProg.setText("Test run completed successfully")
        print("Test run completed sucessfully")

    if return_code !=0:
#        print(err)
        e = subprocess.CalledProcessError(return_code, cmd)
#                    e.stdout, e.stderr = err
#                self.ui.AcqProg.setText("Call to microphonics script failed \n"+str(e))
        print("Call returned non-zero value")

        
except:
#            self.ui.AcqProg.setText("try failed \n")
    print("try failed")
    

print('the code waited for the process to complete')