1. Modify lab2f.py (attached pic), add an IF statement to the script that checks to see if a argument was entered. If a argument was entered use that number for the timer, if no argument was entered, then by default, the timer should equal 3.

timer = int(sys.argv[1])

Remember to check the number of arguments in an IF statement using:

len(sys.argv)

Additional Input / Output / Processing Requirements

• The script should have a Shebang line
• The script should have a comment line which contains the word "Author:" and your full name
• The script should have another comment line which contains the word "Author ID:" and your seneca_id
• The script should have another comment line which contains the word "Date Created:" and the actual date in "yyyy/mm/dd" format
• The script should import sys
• The script should assign the value of 3 to an object named timer when there is no arguments provided.
• The script should assign the value of int(sys.argv[1]) if an object named timer when one command line argument (sys.argv[1]) are entered
• The script should have a WHILE loop that repeats until (and not including when) timer equals 0
• The script should print the EXACT OUTPUT as shown

Sample run 1:

./lab2g.py 5

5

4

3

2

1

blast off!

 

 

 

#! /usr/bin/env python3 #Author: Seneca Id 39103436 #Author ID: 39103436 # Date Created: 2020/09/21 import sys timer = int (sys.argv[1]) while timer > 0: print(timer) timer 1 print("blast off!")