Python

Lab Activity 5.1

Implement a program that starts by asking the user to enter a login id (i.e., a string). The program then checks whether the id entered by the user is in the list [“joe”, “sue”, “hani”, “sophie”] of valid users. Depending on the outcome, an appropriate message should be printed. Regardless of the outcome, your function should print “Done.” Before terminating. Here is an example of a successful login:

>>>

Login: joe

You are in!

Done.

And here is one of that is not:

>>>

Login: john

User unknown

Done.

Lab Activity 5.2

Implement a program that requests from the user a list of words (i.e., strings) and then prints on the screen, on per line all four-letter strings in the list.

>>>

Enter word list: [“stop”, “desktop”, “top”, “post”]

stop

post

Lab Activity 5.3

Write the for loop that will print these sequences of numbers, one per line, in the interactive shell.

(a) Integers from 0 to 9 (i.e., 0, 1, 2, 3, 4, 5, 6, 7, 8, 9)

(b) Integers from 0 to 1 (i.e., 0, 1)