The If statement

Syntax:

if <condition>:
	<code inside the if statement>

Example:

value = 100
if value < 100:
	print('smaller than 100')

More examples: https://www.w3schools.com/python/python_conditions.asp

The For loop

Syntax:

for <variable> in <collection>:
	<code inside the for loop>

Example 1 (executing something n times):

for i in range(n):
	print(n)

Example 2:

my_list = [10, 23, 45, 10, 7]
for i in my_list:
	result = i * 3
	print(result)

More examples: https://www.w3schools.com/python/python_for_loops.asp

The While loop

Syntax:

while <collection>:
	<code inside the while loop> 

Example 1 (executing something forever):

import random
while True:
	random_number = random.random()
	print(random_number)