How do I abort the execution of a Python script

Question

I have a simple Python script that I want to stop executing if a condition is met   For example   done   True if done        quit stop exit else        do other stuff   Essentially  I am looking for something that behaves equivalently to the  return  keyword in the body of a function which allows the flow of the code to exit the function and not execute the remaining code

User · Answer

You can either use   import sys sys exit        or   raise SystemExit        The optional parameter can be an exit code or an error message  Both methods are identical  I used to prefer sys exit  but I ve lately switched to raising SystemExit  because it seems to stand out better among the rest of the code  due to the raise keyword

User · Answer

exit   should do the trick

User · Answer

exit   should do the trick

User · Answer

If the entire program should stop use sys exit   otherwise just use an empty return

User · Answer

You could put the body of your script into a function and then you could return from that function   def main      done   True   if done      return       quit stop exit   else        do other stuff  if   name         main        Run as main program   main

User · Answer

To exit a script you can use   import sys sys exit     You can also provide an exit status value  usually an integer   import sys sys exit 0    Exits with zero  which is generally interpreted as success   Non-zero codes are usually treated as errors   The default is to exit with zero   import sys sys exit  aa  errors      Prints  aa  errors   and exits with a status code of 1   There is also an  exit   function in the os module   The sys exit   function raises a SystemExit exception to exit the program  so try statements and cleanup code can execute   The os  exit   version doesn t do this   It just ends the program without doing any cleanup or flushing output buffers  so it shouldn t normally be used     The Python docs indicate that os  exit   is the normal way to end a child process created with a call to os fork    so it does have a use in certain circumstances

User · Answer

import sys sys exit

User · Answer

You can either use   import sys sys exit        or   raise SystemExit        The optional parameter can be an exit code or an error message  Both methods are identical  I used to prefer sys exit  but I ve lately switched to raising SystemExit  because it seems to stand out better among the rest of the code  due to the raise keyword

User · Answer

To exit a script you can use   import sys sys exit     You can also provide an exit status value  usually an integer   import sys sys exit 0    Exits with zero  which is generally interpreted as success   Non-zero codes are usually treated as errors   The default is to exit with zero   import sys sys exit  aa  errors      Prints  aa  errors   and exits with a status code of 1   There is also an  exit   function in the os module   The sys exit   function raises a SystemExit exception to exit the program  so try statements and cleanup code can execute   The os  exit   version doesn t do this   It just ends the program without doing any cleanup or flushing output buffers  so it shouldn t normally be used     The Python docs indicate that os  exit   is the normal way to end a child process created with a call to os fork    so it does have a use in certain circumstances

User · Answer

import sys sys exit

User · Answer

Try  sys exit  message     It is like the perl  die  message     if this is what you are looking for  It terminates the execution of the script even it is called from an imported module   def  function

User · Answer

To exit a script you can use   import sys sys exit     You can also provide an exit status value  usually an integer   import sys sys exit 0    Exits with zero  which is generally interpreted as success   Non-zero codes are usually treated as errors   The default is to exit with zero   import sys sys exit  aa  errors      Prints  aa  errors   and exits with a status code of 1   There is also an  exit   function in the os module   The sys exit   function raises a SystemExit exception to exit the program  so try statements and cleanup code can execute   The os  exit   version doesn t do this   It just ends the program without doing any cleanup or flushing output buffers  so it shouldn t normally be used     The Python docs indicate that os  exit   is the normal way to end a child process created with a call to os fork    so it does have a use in certain circumstances

User · Answer

You could put the body of your script into a function and then you could return from that function   def main      done   True   if done      return       quit stop exit   else        do other stuff  if   name         main        Run as main program   main

User · Answer

exit   should do it

User · Answer

exit   should do the trick

User · Answer

Try  sys exit  message     It is like the perl  die  message     if this is what you are looking for  It terminates the execution of the script even it is called from an imported module   def  function

User · Answer

exit   should do it

User · Answer

To exit a script you can use   import sys sys exit     You can also provide an exit status value  usually an integer   import sys sys exit 0    Exits with zero  which is generally interpreted as success   Non-zero codes are usually treated as errors   The default is to exit with zero   import sys sys exit  aa  errors      Prints  aa  errors   and exits with a status code of 1   There is also an  exit   function in the os module   The sys exit   function raises a SystemExit exception to exit the program  so try statements and cleanup code can execute   The os  exit   version doesn t do this   It just ends the program without doing any cleanup or flushing output buffers  so it shouldn t normally be used     The Python docs indicate that os  exit   is the normal way to end a child process created with a call to os fork    so it does have a use in certain circumstances

User · Answer

import sys sys exit

User · Answer

You could put the body of your script into a function and then you could return from that function   def main      done   True   if done      return       quit stop exit   else        do other stuff  if   name         main        Run as main program   main

User · Answer

exit   should do the trick

User · Answer

You could put the body of your script into a function and then you could return from that function   def main      done   True   if done      return       quit stop exit   else        do other stuff  if   name         main        Run as main program   main

User · Answer

If the entire program should stop use sys exit   otherwise just use an empty return

User · Answer

If the entire program should stop use sys exit   otherwise just use an empty return

User · Answer

If the entire program should stop use sys exit   otherwise just use an empty return

User · Answer

exit   should do it

User · Answer

exit   should do it

User · Answer

import sys sys exit

User · Answer

You can either use   import sys sys exit        or   raise SystemExit        The optional parameter can be an exit code or an error message  Both methods are identical  I used to prefer sys exit  but I ve lately switched to raising SystemExit  because it seems to stand out better among the rest of the code  due to the raise keyword

User · Answer

You can either use   import sys sys exit        or   raise SystemExit        The optional parameter can be an exit code or an error message  Both methods are identical  I used to prefer sys exit  but I ve lately switched to raising SystemExit  because it seems to stand out better among the rest of the code  due to the raise keyword

[python] How do I abort the execution of a Python script?

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