Intro

Question 1

how to set up a string

Answer 1

( )

Question 2

what is a string

Answer 2

anything in the ( )

Question 3

what is a variable and how do we asing a variable

Answer 3

If there is a greeting we want to present, a date we need to reuse, or a user ID we need to remember we can create a variable which can store a value. In Python, we assign variables by using the equals sign (=).

Question 4

How to set up a variable and print

Answer 4

e.g lunch=”toast”
print(“lunch”)

Question 5

what is a syntax error

Answer 5

SyntaxError means there is something wrong with the way your program is written — punctuation that does not belong, a command where it is not expected, or a missing parenthesis can all trigger a SyntaxError.

Question 6

What is a name error

Answer 6

A NameError occurs when the Python interpreter sees a word it does not recognize. Code that contains something that looks like a variable but was never defined will throw a NameError.

Question 7

what is a int

Answer 7

Whole number

Question 8

what is a float

Answer 8

decimal number you cana define an int and float as variables

Question 9

what is a literal number

Answer 9

We call the number 3 here a literal, meaning it’s actually the number 3 and not a variable with the number 3 assigned to it.

Question 10

how to set a varible using number

Answer 10

e.g rating = 4.5.

(dosn’t need strings)

Question 11

what are the maths symbols you can use in python

Answer 11

multiplication, and division with +, -, *, and /.

e.g

Prints “500”
print(573 - 74 + 1)

Prints “50”
print(25 * 2)

Prints “2.0”
print(10 / 5)

Question 12

how can Two variables can be added together that are assigned numbers

Answer 12

coffee_price = 1.50
number_of_coffees = 4

Prints “6.0”
print(coffee_price * number_of_coffees)
# Prints “1.5”
print(coffee_price)
# Prints “4”
print(number_of_coffees)

Performing arithmetic on variables does not change the variable — you can only update a variable using the = sign.

Question 13

What is a exponent

Answer 13

the power of

Question 14

what is a modulo operator

Answer 14

The modulo operator is indicated by % and gives the remainder of a division calculation. If the two numbers are divisible, then the result of the modulo operation will be 0.

Prints 4 because 29 / 5 is 5 with a remainder of 4
print(29 % 5)

Question 15

example of modulo

Answer 15

print(3 % 3) # Prints 0
print(4 % 3) # Prints 1
print(5 % 3) # Prints 2
print(6 % 3) # Prints 0
print(7 % 3) # Prints 1

acts as a clock it will always reset

In each of these modulo operations, 3 is the divisor. Since 3 / 3 equals 1 with no remainder, the result of the first modulo operation is 0. Note that as the dividend increases by 1, the remainder also increases by 1, until we reach the next number that is evenly divisible by 3 — this creates a pattern that repeats contiuously as the dividend increases by 1!

Question 16

when is a modulo useful in programming

Answer 16

Because of this, the modulo operator is useful in programming when we want to perform an action every nth time something occurs. Imagine you own a small café and would like for every 7th customer to receive a survey. If every customer transaction is numbered in the order they occur, you can determine which customers should receive the survey by calculating <transaction> % 7 — if the result is 0, hand out the survey!</transaction>

Question 17

what does the % does in the modulo

Answer 17

The modulo operator is indicated by % and gives the remainder of a division calculation.

Question 18

what is Concatenation

Answer 18

The + operator doesn’t just add two numbers, it can also “add” two strings! The process of combining two strings is called string concatenation. Performing string concatenation creates a brand new string comprised of the first string’s contents followed by the second string’s contents (without any added space in-between).

Question 19

what is an example of concatrnation

Answer 19

greeting_text = “Hey there!”
question_text = “How are you doing?”
full_text = greeting_text + “” + question_text

Prints “Hey there!How are you doing?”
print(full_text)

Question 20

how to you add a number to a concatenateion

Answer 20

using the str( ) function.

e.g birthday_string = “I am “
age = 10
birthday_string_2 = “ years old today!”

full_birthday_string = birthday_string + str(age) + birthday_string_2

Prints “I am 10 years old today!”

print(full_birthday_string)

Question 21

what is plus equals

Answer 21

a shorthand for updating variables. When you have a number saved in a variable and want to add to the current value of the variable, you can use the += (plus-equals) operator.

Question 22

what is can example of plus equals

Answer 22

number_of_miles_hiked = 12

Then we need to update that variable
# Let’s say we hike another two miles today
number_of_miles_hiked += 2

The new value is the old value
# Plus the number after the plus-equals
print(number_of_miles_hiked)
# Prints 14

Question 23

show example of +=

Answer 23

We’re doing a little bit of online shopping and find a pair of new sneakers. Right before we check out, we spot a nice sweater and some fun books we also want to purchase!

Use the += operator to update the total_price to include the prices of nice_sweater and fun_books.

Question 24

what is a multi line string

Answer 24

Python strings are very flexible, but if we try to create a string that occupies multiple lines we find ourselves face-to-face with a SyntaxError.

Question 25

example of +=

Answer 25

number_of_miles_hiked = 12

number_of_miles_hiked += 2

print(number_of_miles_hiked)
# Prints 14

Question 26

how to set a multi line string

Answer 26

Python offers a solution: multi-line strings. By using three quote-marks (“”” or ‘’’) instead of one, we tell the program that the string doesn’t end until the next triple-quote.

Question 27

what is input ( )

Answer 27

The input() function requires a prompt message, which it will print out for the user before they enter the new information. For example:

likes_snakes = input(“Do you like snakes? “)