PCEP Module 2: Introduction to Python and Computer Programming

Question 1

What does the print() function do in Python?

Answer 1

It shows a message or output on the screen.

Question 2

What are two things a function can do?

Answer 2

Make something happen. 2) Return a value.

Question 2

What are the three types of functions in Python?

Answer 2

1) Built-in functions
2) Functions from modules
3) Functions you create yourself

Question 3

True or False — A Python function can take any number of arguments, including none.

Answer 3

True

Question 3

Besides the name, what else is important in a function?

Answer 3

The arguments — they’re the inputs the function uses.

Question 3

What should you think about when naming a function?

Answer 3

The name should describe what the function does.

Question 4

What do Python functions always need?

Answer 4

Parentheses () — even if there are no arguments.

Question 5

How do you run a function with arguments?

Answer 5

Put the arguments inside the parentheses.

Question 5

True or False — You must use parentheses even if there are no arguments.

Answer 5

True

Question 6

What is a string?

Answer 6

A string is delimited with quotes.

Question 7

True or False: Anything you put in quotes will be taken literally, not as code but as data

Answer 7

True

Question 8

What are the steps of how a function is executed?

Answer 8

1. Python checks if the specified name is legal.
2. Python checks if the functions requirements for the number of arguments allows you to invoke the function in this way
3. Python leaves your code for a moment and jumps into the function you want to invoke; of course, it takes your arguments too and passes it/them to the function.
4. The function executes its code, causes the desired effect (if any), evaluates the desired results (if any) and finishes the task.
5. Python returns to your code (to the place just after the invocation) and resumes its execution.

Question 9

What does the print() function do?

Answer 9

1. Takes in your message
2. Converts it to something readable (if needed)
3. Sends it to the screen

Whatever you put in print() shows up in the console.

Question 10

What kind of arguments can you put in print()?

Answer 10

Anything

Question 11

What does print() return?

Answer 11

Nothing (None). It just shows stuff—no value is given back.

Question 12

What’s unique about Python’s syntax?

Answer 12

Normally, only one instruction per line is allowed.
You can split a long instruction across lines, but not stack multiple ones in a line without a semicolon.

Question 13

How can you make a new line in Python?

Answer 13

1. Use print()
2. Use \n (newline character)

Question 14

What’s a backslash in a string called?

Answer 14

An escape character – it gives special meaning to the next letter.

Question 15

What does \n mean?

Answer 15

It means newline – it moves the output to the next line.