How to stop terminate a python script from running

Question

I wrote a program in IDLE to tokenize text files and it starts to tokeniza 349 text files  How can I stop it  How can I stop a running Python program

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Control D works for me on Windows 10  Also  putting exit   at the end also works

User · Answer

exit   will kill the Kernel if you re in Jupyter Notebook so it s not a good idea  raise command will stop the program

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To stop a python script using the keyboard  Ctrl   C  To stop it using code  This has worked for me on Python 3     import os os  exit 0    you can also use   import sys sys exit     or   exit     or   raise SystemExit

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You can also do it if you use the exit   function in your code  More ideally  you can do sys exit    sys exit   which might terminate Python even if you are running things in parallel through the multiprocessing package   Note  In order to use the sys exit    you must import it  import sys

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Ctrl-Break    it is more powerful than Ctrl-C

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If your program is running at an interactive console  pressing CTRL   C will raise a KeyboardInterrupt exception on the main thread   If your Python program doesn t catch it  the KeyboardInterrupt will cause Python to exit  However  an except KeyboardInterrupt  block  or something like a bare except   will prevent this mechanism from actually stopping the script from running   Sometimes if KeyboardInterrupt is not working you can send a SIGBREAK signal instead  on Windows  CTRL   Pause Break may be handled by the interpreter without generating a catchable KeyboardInterrupt exception   However  these mechanisms mainly only work if the Python interpreter is running and responding to operating system events  If the Python interpreter is not responding for some reason  the most effective way is to terminate the entire operating system process that is running the interpreter  The mechanism for this varies by operating system   In a Unix-style shell environment  you can press CTRL   Z to suspend whatever process is currently controlling the console  Once you get the shell prompt back  you can use jobs to list suspended jobs  and you can kill the first suspended job with kill  1   If you want to start it running again  you can continue the job in the foreground by using fg  1  read your shell s manual on job control for more information    Alternatively  in a Unix or Unix-like environment  you can find the Python process s PID  process identifier  and kill it by PID  Use something like ps aux   grep python to find which Python processes are running  and then use kill  lt pid gt  to send a SIGTERM signal   The kill command on Unix sends SIGTERM by default  and a Python program can install a signal handler for SIGTERM using the signal module  In theory  any signal handler for SIGTERM should shut down the process gracefully  But sometimes if the process is stuck  for example  blocked in an uninterruptable IO sleep state   a SIGTERM signal has no effect because the process can t even wake up to handle it   To forcibly kill a process that isn t responding to signals  you need to send the SIGKILL signal  sometimes referred to as kill -9 because 9 is the numeric value of the SIGKILL constant  From the command line  you can use kill -KILL  lt pid gt   or kill -9  lt pid gt  for short  to send a SIGKILL and stop the process running immediately   On Windows  you don t have the Unix system of process signals  but you can forcibly terminate a running process by using the TerminateProcess function  Interactively  the easiest way to do this is to open Task Manager  find the python exe process that corresponds to your program  and click the  End Process  button  You can also use the taskkill command for similar purposes

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To stop your program  just press Control    C

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If you are working with Spyder  use CTRL      DOT  and you will restart the kernel  also you will stop the program

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To stop a running program  use Ctrl C to terminate the process  To handle it programmatically in python  import the sys module and use sys exit   where you want to terminate the program  import sys sys exit

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Press Ctrl Alt Delete and Task Manager will pop up  Find the Python command running  right click on it and and click Stop or Kill

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To stop your program  just press CTRL   D  or exit

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Ctrl   Z should do it  if you re caught in the python shell  Keep in mind that instances of the script could continue running in background  so under linux you have to kill the corresponding process

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Windows solution  Control    C   Macbook solution  Control        C   Another way is to open a terminal  type top  write down the PID of the process that you would like to kill and then type on the terminal  kill -9  lt pid gt

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When I have a python script running on a linux terminal  CTRL     works   not CRTL   C or D

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To stop a python script just press Ctrl   C  Inside a script with exit    you can do it  You can do it in an interactive script with just exit  You can use pkill -f name-of-the-python-script

User · Answer

you can also use the Activity Monitor to stop the py process

[python] How to stop/terminate a python script from running?

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