[best-practices-programming] python: quit() vs sys.exit(1)

[jgvictores]

[best-practices-programming] python: quit() vs sys.exit(1)

Just putting here to document. Not a serious issue, just in the light of roboticslab-uc3m/yarp-devices@3c1f7f3 where both were being used. Could not find similar issue in https://github.com/roboticslab-uc3m/questions-and-answers.

[PeterBowman]

See also commit description at roboticslab-uc3m/kinematics-dynamics@127a768 and https://stackoverflow.com/a/19747562.

[jgvictores]

Yup, I agree with my past self that raise SystemExit saves you from import sys. A few notes:

• Both exit(1) and raise SystemExit(1) are valid syntax.
• There is a small goodie in exit: "exit("Here is why the program failed"), which prints the error message and exits with return status 1." (via Jasha at mentioned SO answer).