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Lesson 3 Quiz: Your First Program: Print, and Running Code

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1. What is the IDLE shell for, and what is a program file for?

A. The shell saves your program; a program file tries one line at a time. B. The shell draws pictures; a program file prints words. C. The shell installs Python; a program file runs it. D. The shell tries one line at a time; a program file keeps several lines to run together.

2. What does `print("Hi!")` do?

A. It saves `Hi!` into a file. B. It displays `Hi!` on the screen. C. It asks you to type `Hi!`. D. It deletes `Hi!` from the computer.

3. Why does `print(Hello)` give an error?

A. Because `Hello` is too long a word. B. Because `print` only works with numbers. C. Without quotes, Python reads `Hello` as a name with no stored value, giving a NameError. D. Because the shell cannot show capital letters.

4. What does a `#` at the start of a line do?

A. It makes the line a comment, which Python ignores. B. It makes the line run twice as fast. C. It turns the line into a print statement. D. It tells Python the line is an error.

5. What file ending do Python program files use, and what key runs a file in IDLE?

A. `.txt`; F5 (Run → Run Module). B. `.py`; F5 (Run → Run Module). C. `.py`; F1 (Run → Run Module). D. `.pyc`; Ctrl+R (Run → Run Module).

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