It can be used to open new programs, send them data and get results back.

The Python subprocess module is a tool that allows you to run other programs or commands from your Python code. Whether you're a beginner or an experienced Python developer, this tutorial will provide you with the knowledge you need to use the subprocess module effectively in your projects. In this article, we'll explore the basics of the subprocess module, including how to run external commands, redirect input and output, and handle errors. Something isn't right in my setup and need help.You can use the Python subprocess module to create new processes, connect to their input and output, and retrieve their return codes and/or output of the process. (I have tried everything I can find in StackExchange and don't feel like this is a duplicate because I still can't get it to work. I've followed details outlined in other posts, like this one and this one, but something is preventing it from working for me. What I'd like to have happen is a 'DONE' printed immediately after issuing the rsync command and for the transfer to start. What happens is this.I can watch the transfer on the server and when it's finished, then I get a 'DONE' printed to the screen.

Obviously, I would run the script with the right line uncommented.) (I've commented out the execution commands only because I'm actually keeping all of my trials in my code so that I know what I've done and what I haven't done. #os.system(rsync_cmd2) # This doesn't work #os.spawnv(os.P_NOWAIT, rsync_path, rsync_args) # This doesn't work

#os.execv(rsync_path, rsync_args) # This doesn't work #subprocess.Popen(shlex.split(rsync_cmd)) # This doesn't work #subprocess.Popen(rsync_cmd, shell=True, stdin=None, stdout=None, stderr=None, close_fds=True) # This doesn't work #subprocess.Popen(rsync_cmd2, shell=True) # Adding my own shell '&' to background it, still fails #subprocess.Popen(rsync_cmd, shell=True) # This is supposed to be the solution but not for me #subprocess.call(rsync_cmd, shell=True) # This isn't supposed to work but I tried it Sample code: rsync_cmd = '/usr/bin/rsync -a -e 'ssh -i /home/myuser/.ssh/id_rsa' '.format(remote_user, remote_server, file1, file1)) My goal is simple: kick off rsync and DO NOT WAIT.

Python subprocess call background