How to run several python scripts in one file concurrently? Question: I want to run several python scripts from the main file and make them work in parallel. I would like to print their outputs in a console if it is possible. It’s better to run them in different processes to be able to operate …
Gracefully handling keyboard interrupt for Python multi-processing Question: I am working on a project which runs two separate python processes. When I do a ctrl + c to end the program, I would like the program to end gracefully. I can produce a minimum working version of the code through the following: from multiprocessing import …
How to make a code faster to calculate the linear distances from the point Python? Question: Here is the code: Outputs = [] for X2, Y2 in X: Color_Gradient = 0 Lowest = 0 for X1, Y1, grad in zip(Velocity_Momentum[:, 0], Velocity_Momentum[:, 1], Color): XD = X2 – X1 YD = Y2 – Y1 Distance …
error using pipes in python using os.pipe() and using os.fork() Question: So I made a simple piece of code to add 1 to a value. I create two process and I am creating a pipe for storage the information beetween iterations. In the first cycle it gives the correct value but in the second iterration …
Check certain Popen is running at first (==Checking variable is assigned) Question: I got a running Thread p in a function and trying to check at first, whether it’s already running or not if p wasn’t running it spits reference before the assignment error from subprocess import check_output,Popen from asyncio.subprocess import PIPE from threading import …
Python starting processes with separate Thread leads to exception and death of that thread Question: I have my main function run_tests which firstly starts new, separate Thread that starts new processes and then in main loop I try to detect those that have finished and those that have timeouted. import time import traceback from typing …
Python what approach is the best – "list of Task objects" or "class Tasks with variable list of elements" Question: I want to implement a list of tasks, but I don’t know which approach of the two is the best: First: class Tasks(object): def __init__(self) -> None: self.tasks = [] def add(self, process, instance) -> …
Check files modification from a process with Python watchdog Question: I’m trying to use Python watchdog and I don’t know if it’s possible to check if a process modified/created/deleted files, can anyone help me? import sys import time import logging from watchdog.observers import Observer from watchdog.events import LoggingEventHandler logging.basicConfig(level=logging.INFO, format=’ %(message)s’) path = sys.argv[1] if …
How to get the process ID of python programm? Question: Is there a way to get the process ID (PID) of a python program? The program was started from the command line. Asked By: asdewkas || Source Answers: this should do it: import os pid = os.getpid() print(pid) Answered By: Helmut
Python script for 'ps aux' command Question: I have tried to use subprocess.check_output() for getting the ps aux command using python but it looks like not working with the large grep string. Can anyone have any solution? subprocess.check_output(‘ps aux | grep "bin/scrapy" | grep "option1" | grep "option2" | grep "option3" | grep "option4" | …
