program termination and return value

[Scott Carlson]

Hi,

Python novice. (But getting better.)

How do I terminate/quit my program during execution if I reach a point
where I desire to terminate the program?

How do I pass back an integer indicating (as example) an error number?

If I then do this, what do I put on the last line of my program to
return (for example) a zero, indicating success?

Thanks,
Scott

 

[F. Petitjean]

Hi,

Python novice. (But getting better.)

How do I terminate/quit my program during execution if I reach a point
where I desire to terminate the program? raise SystemExit

How do I pass back an integer indicating (as example) an error number?

raise SystemExit(2) # error number 2

If I then do this, what do I put on the last line of my program to
return (for example) a zero, indicating success?

noting : an equivalent to sys.exit(0) or raise SystemExit(0) is
automatically generated.

Thanks,
Scott

You can also use :
import sys
sys.exit(0)

on the python prompt :
import atexit
help(atexit)

good reading!