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→PART 3 - Using WHILE Loops With IF Statements
:#Make a copy of '''lab2f.py''' and call it '''lab2g.py'''.
:#Modify '''lab2g.py''', add a 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.
<blockquote style="margin-left:35px;">{{Admon/important|style="padding-left:25px"|ADDITIONAL WARNINGS|If you are running the '''len(sys.argv)''' function in ipython3, the number of arguments returned will be always be '1'. This number will always be one higher than the actual number of arguments entered, since it also counts the script name as a argument.}}</blockquote>
<blockquote style="margin-left:35px;">{{Admon/important|style="padding-left:25px"|Additional WARNINGS|When using arguments as numbers/integers or performing math on arguments you must wrap them in the int() function: count = int(sys.argv[1])<br><br>Remember to check the number of arguments using len(sys.argv) in an IF statement}}</blockquote>