How Variables work in Python

Question 1

What is a variable?

Answer 1

A variable is a container for the value it behaves as the value it contains. Think of variables like in algebra

Question 2

What are boolean variables?

Answer 2

True or false

Question 3

How do you create a variable?

Answer 3

Every variable needs a unique name.

I.e. name=”Meeko”

*don’t forget the quotation marks. Code will not run if you don’t hit RUN

Question 4

Print a variable name of Kevin.

Answer 4

FILE—>NEW—>(name it: Try)–>CLICK PYTHON FILE

NAME=”Kevin”
print (NAME)

Terminal Window: Kevin

*don’t need quotes in PRINT because if you do, the terminal window will display as “Kevin” instead of just Kevin.

Question 5

What is a string?

Answer 5

A string is a type of variable that is a series of characters.

Question 6

Create a string literal that reads Goodbye HCS

Answer 6

NAME=”HCS”
PRINT(“Goodbye “+name)

Window Terminal: Goodbye HCS

Question 7

How do you check the type of a variable?

Answer 7

NAME= “Dog”
PRINT(TYPE(NAME))

TERMINAL WINDOW

Question 8

What is str?

Answer 8

Str stands for strings which is a series of characters. it is a data type of a variable.

Question 9

Can you combine variables?

Answer 9

Yes you can combine variables as long as they are of the same data type.

Question 10

combine variables to display a printed I love Kevin Wallace

Answer 10

FIRST_NAME = “KEVIN”
LAST_NAME = “WALLACE”
FULL_NAME = FIRST_NAME + LAST_NAME
PRINT(“I LOVE “+ FULL_NAME)

T.W.D.: I LOVE KEVINWALLACE

To add a space, go to FULL_NAME = FIRST_NAME +
“ “ + LAST_NAME

T.W.D.: I LOVE KEVIN WALLACE

Question 11

How do I change the variables to a comment data type?

Answer 11

Add # in front of each line.

Question 12

What is int?

Answer 12

int is another data type known as an integer. An integer is any whole number.

Question 13

What happens if you put an int value in “ “?

Answer 13

This changes the variable data type from an int to a str

integer to string, strings cannot be used in a mathematical data types

Question 14

Increase the age of 52 by 4

Use both ways

Answer 14

AGE = 52
AGE = 52 +4

TWD: 56

AGE = 52
AGE +=4

TWD: 56

Question 15

Create a code that says Your age is 85 by starting with the original age of 80.

Answer 15

AGE = 80
AGE += 5
PRINT (“Your age is: “ + str(age))

TWD: Your age is 85

Question 16

What is a float data type?

Answer 16

A float data type is a floating point number. meaning it has a decimal number.

Question 17

Typecast Your height is 152.25 cm

Answer 17

HEIGHT= 152.25
PRINT(“YOUR HEIGHT IS: “ + STR(HEIGHT) +” “ +”cm”)

TWD: Your height is 152.25 cm

Question 18

What is a boolean (bool) data type?

Answer 18

Boolean data types or bool can only store true or false.

Question 19

Create a code that displays Does Kevin Love Meeko: True

Answer 19

ANSWER= True
PRINT(“DOES KEVIN LOVE MEEKO: “ + STR(ANSWER))

TWD Does Kevin love Meeko: True

Question 20

human= false
print (“Are you human: “ + str(human))

TWD error

Why didn’t the code work?

Answer 20

For Bool, True or False must have correct uppercase.

fix:
human= False
print (“Are you human: “ + str(human))

TWD Are you human: false

Question 21

What are the 4 basic types of data for Python?

Answer 21

Str (strings): stores a series of characters

Int (integer): stores whole numbers

Float (Floating point number): stores decimal numbers

Bool (Boolean): stores True or False for if statements