Hi,

I saw a pice of code about “command line argument”:

>>> import sys
>>> print(sys.argv)
['demo.py', 'one', 'two', 'three']

on this page:

https://docs.python.org/3/tutorial/stdlib.html#command-line-arguments

It shows how to get a list of parameters and looks like it's in interactive mode.

But I can't do the same thing in interactive mode, sys.argv is always return empty list, unless I put these code in a script and execute it.

Does this mean this sample code not too clear?

Regards 
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Runbing