how to reverse a list in python3 code example

Example 1: python reverse list

# Operating System List
systems = ['Windows', 'macOS', 'Linux']
print('Original List:', systems)

# Reversing a list	
#Syntax: reversed_list = systems[start:stop:step] 
reversed_list = systems[::-1]

# updated list
print('Updated List:', reversed_list)

Example 2: reverse python3

arr = [2,5,32,86,4,131,97]

# reverse without modifying input, using range:
for i in range(len(arr)-1, -1, -1):
    print(arr[i])
    
# reverse and modifying input:
arr.reverse()