python recap

Question 1

Choosing which lines of code to execute based on a condition​

Example: ​

Answer 1

num = int(input(“Enter a number”))​

if num == 5:​

print(“Correct”)​

else:​

print(“Nope”)

Question 1

For loops

Answer 1

for counter in range(5):​

print(“This message prints 5 times”)​

​

Question 2

​While loops

Answer 2

answer = “”​

while answer != “London”:​

answer = input(“What is the capital of England?”)​

—​

num = 1​

while num <= 5:​

print(num)​

num +=1​

Question 3

Used to store multiple data items under a single identifier (variable name)​

​

Examples: ​

Answer 3

emptyList = []​

​

myList = [“Bananas”, “Apples”, “Pears”]​

myList.append(“Grapes”) ​

​

numList = [3,6,9,12]​

​

print(myList)​

print(myList[2])​

print(len(myList))​

​

myList.remove(“Apples”)​

​

Question 4

Example Procedure:

Answer 4

Subroutines​

def sayHello():​

print(“Hello how are you?”)​

​

def sayHello(name):​

print(“Hello”, name, “how are you?”)​

​

sayHello()​

sayHello(“Billy”)

Question 5

Example Function:

Answer 5

Subroutines​

def add(num1,num2):​

answer = num1 + num2​

return num2​

​

answer = add(4,9)​

print(answer)