Questions

True/False

1. Every if statement must be followed by a paired else branch. (T/F)

2. Lines contained in an else branch in Python do not have to be indented. (T/F)

3. You can name a variable else in your program without Python confusing your variable’s name and the else keyword. (If you are unsure, this is a good one to try yourself!) (T/F)

Conceptual

1. What does the condition of a conditional have to evaluate to in order to enter its then block?

2. What does the condition of a conditional have to evaluate to in order to enter its else block?

3. What happens when a return statement is encountered?

Code Snippet

1    def main() -> None: 
2       x: str = "x"
3       y: str = "y"
4       z: str = x
5       y = x
6       x = "y"
7
8       if not(x != y and x != "y"):
9           print(f"x: {x}")
10      else:
11          print("'if' condition not met.")
12 
13   main()

1. What is the condition in this code?

2. What does the condition evaluate to? (Don’t do it in your head, draw a memory diagram!)

3. What values should x, y, and/or z have to be assigned to in order for the else block to run?

4. What other values can x, y, and/or z be assigned in order for the if block to run?