Question

What are the values ofsys.argv[1]andtype(sys.argv[2]) for the command-line input> python prog.py June 16?

A) June,
B) June, 16
C) June, None
D) June,

Answer 1

The values for 'sys.argv[1]' is 'June' and for 'type(sys.argv[2])' is ''. Command-line arguments are always strings, which can be converted to other types if necessary.

Step-by-step explanation:

The direct answer to the command-line input python prog.py June 16 is:

• sys.argv[1]: June
• type(sys.argv[2]): <class 'str'>

Explanation in 200 words: In Python, the sys.argv list is used to retrieve the command-line arguments passed to a script, where sys.argv[0] is the script name. In this case, 'prog.py' is the 0th element, 'June' is the 1st element, and '16' is the 2nd element, making sys.argv[1] equal to 'June'. The type of sys. argv[2], is always a string, irrespective of whether the argument is a number or text when passed through the command line. Consequently, type(sys. argv[2]) will return <class 'str'>, confirming that command-line arguments are strings by default. To use these arguments as numbers, one must explicitly convert them using functions such as int() or float() if numerical operations are intended.