#!/usr/bin/env python3

# Python has two types of loops, `for` and `while`.

# 1. `for loops

print("Example 1 : for loops")

for i in [1, 2, 3, 4, 5]:

print(i)

# 2. `while` loop

# NOTE: `while` loops can end up in infinite loops

# if there no start and end conditions such as `j=0`

# and `j <= 5`.

print("Example 2 : while loop")

j = 0

while j <= 5:

print("Good morning!")

j += 1

print("Example 3 : while loop")

d = 0

while d < 10:

print(d)

if d == 5:

break

d += 1

# 3. range()

# range() is a builtin function that gives a stretch of elements

# which ideally can be iterated over using a `for` loop

print("Example 4 : range()")

print(range(5))

# This prints the power of the numbers between 1 and 10

# skipping one number in between

print("Example 5 : for loop and range()")

for b in range(1, 11, 2):

print(b ** 2)

# This can be also shortened via list comprehensions

print("Example 6 : Iterating over a range() with list comprehensions")

print([b ** 2 for b in range(1, 11, 2)])