name exit is not defined in python

Question

The following is the code. When I run, I got an error message, saying that \"name exit is not defined\". Could anyone tell me why? Thanks very much for your time and attent

Answer 1

You need to import sys first, since exit (and argv) is in that module.

The error I get when I run your code is:

File "", line 1, in NameError: name 'sys' is not defined

which is complaining about sys.argv instead of exit. But in either case, the solution -- import sys is the same.