Q: If a program is invoked with "python program. py - r input. dat output. dat", what are the elements of argv?

There are four choices:

A. argv[0]: "-r input. dat output. dat"

B. argv[1]: "-r"

argv[2]: "input. dat"

argv[3]: "output. dat"

C. argv[0]: "program. py"

argv[1]: "-r"

argv[2]: "input. dat"

argv[3]: "output. dat"

D. argv[0]: "-r"

argv[1]: "input. dat"

argv[2]: "output. dat"

Question

Computers and Technology

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17 August, 10:58

Q: If a program is invoked with "python program. py - r input. dat output. dat", what are the elements of argv?

There are four choices:

A. argv[0]: "-r input. dat output. dat"

B. argv[1]: "-r"

argv[2]: "input. dat"

argv[3]: "output. dat"

C. argv[0]: "program. py"

argv[1]: "-r"

argv[2]: "input. dat"

argv[3]: "output. dat"

D. argv[0]: "-r"

argv[1]: "input. dat"

argv[2]: "output. dat"

+3

Answers (1)

Know the Answer?

Grady Horn · Answer 1

C

Explanation:

C. argv[0]: "program. py"

argv[1]: "-r"

argv[2]: "input. dat"

argv[3]: "output. dat"

is the right answer. as 0 argument is always the script. We can find this by importing sys and using the command sys. argv. And like len (sys. argv) will give total number of arguments.