Run multiple python scripts concurrently

Question

How can I run multiple python scripts  At the moment I run one like so python script1 py   I ve tried python script1 py script2 py and that doesn t work  only the first script is run  Also  I ve tried using a single file like this   import script1 import script2  python script1 py python script2 py   However this doesn t work either

User · Answer

The simplest solution to run two Python processes concurrently is to run them from a bash file, and tell each process to go into the background with the & shell operator.

python script1.py &
python script2.py &

For a more controlled way to run many processes in parallel, look into the Supervisor project, or use the multiprocessing module to orchestrate from inside Python.

User · Answer

With Bash     python script1 py  amp  python script2 py  amp    That s the entire script  It will run the two Python scripts at the same time   Python could do the same thing itself but it would take a lot more typing and is a bad choice for the problem at hand   I think it s possible though that you are taking the wrong approach to solving your problem  and I d like to hear what you re getting at

User · Answer

You try the following ways to run the multiple python scripts     import os   print  Starting script1    os system  python script1 py arg1 arg2 arg3     print  script1 ended    print  Starting script2    os system  python script2 py arg1 arg2 arg3     print  script2 ended    Note  The execution of multiple scripts depends purely underlined operating system  and it won t be concurrent  I was new comer in Python when I answered it    Update  I found a package  https   pypi org project schedule   Above package can be used to run multiple scripts and function  please check this and maybe on weekend will provide some example too   i e    import schedule  import time  import script1  script2   def job         print  I m working        schedule every 10  minutes do job   schedule every   hour do job   schedule every   day at  10 30   do job   schedule every 5  to 10  days do job   schedule every   monday do job   schedule every   wednesday at  13 15   do job    while True       schedule run pending        time sleep 1

User · Answer

I am working in Windows 7 with Python IDLE   I have two programs     progA while True      m   input  progA is running        print  m    and    progB while True      m   input  progB is running        print  m    I open up IDLE and then open file progA py  I run the program  and when prompted for input I enter  b     lt Enter gt  and then  c     lt Enter gt   I am looking at this window   Python 3 6 3  v3 6 3 2c5fed8  Oct  3 2017  17 26 49   MSC v 1900 32 bit  Intel   on win32 Type  copyright    credits  or  license    for more information   gt  gt  gt     RESTART  C  Users Mike AppData Local Programs Python Python36-32 progA py   progA is running b b progA is running c c progA is running    Next  I go back to Windows Start and open up IDLE again  this time opening file progB py  I run the program  and when prompted for input I enter  x     lt Enter gt  and then  y     lt Enter gt   I am looking at this window   Python 3 6 3  v3 6 3 2c5fed8  Oct  3 2017  17 26 49   MSC v 1900 32 bit  Intel   on win32 Type  copyright    credits  or  license    for more information   gt  gt  gt     RESTART  C  Users Mike AppData Local Programs Python Python36-32 progB py   progB is running x x progB is running y y progB is running    Now two IDLE Python 3 6 3 Shell programs are running at the same time  one shell running progA while the other one is running progB

User · Answer

I had to do this and used subprocess   import subprocess  subprocess run  python3 script1 py  amp  python3 script2 py   shell True

User · Answer

I do this in node js  on Windows 10  by opening 2 separate cmd instances and running each program in each instance   This has the advantage that writing to the console is easily visible for each script   I see that in python can do the same  2 shells           You can run multiple instances of IDLE Python shell at the same time  So open IDLE and run the server code and then open up IDLE again  which will start a separate instance and then run your client code

User · Answer

You can use Gnu-Parallel to run commands concurrently  works on Windows  Linux Unix   parallel      python script1 py   python script2 py

User · Answer

The most simple way in my opinion would be to use the PyCharm IDE and install the  multirun  plugin  I tried alot of the solutions here but this one worked for me in the end

[python] Run multiple python scripts concurrently

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