Python exit commands - why so many and when should each be used?

Question

It seems that python supports many different commands to stop script execution.
The choices I\'ve found are: quit(), exit(), sys.exit()

Answer 1

Different Means of Exiting

os._exit():

• Exit the process without calling the cleanup handlers.

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exit(0):

• a clean exit without any errors / problems.

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exit(1):

• There was some issue / error / problem and that is why the program is exiting.

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sys.exit():

• When the system and python shuts down; it means less memory is being used after the program is run.

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quit():

• Closes the python file.

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Summary

Basically they all do the same thing, however, it also depends on what you are doing it for.

I don't think you left anything out and I would recommend getting used to quit() or exit().

You would use sys.exit() and os._exit() mainly if you are using big files or are using python to control terminal.

Otherwise mainly use exit() or quit().