sys argv 1 what is the meaning of it

Question

I am new to python and was wondering whether sys.argv[1] is?

Is it simply a statement for taking an input.

Answer 1

sys.argv[1] contains the first command line argument passed to your script.

For example, if your script is named hello.py and you issue:

$ python3.1 hello.py foo

or:

$ chmod +x hello.py  # make script executable
$ ./hello.py foo

Your script will print:

Hello there foo