Example 1: python how to invert an array
revArray = array[::-1]
Example 2: reverse list python
>>> the_list = [1,2,3]
>>> reversed_list = the_list.reverse()
>>> list(reversed_list)
[3,2,1]
OR
>>> the_list = [1,2,3]
>>> the_list[::-1]
[3,2,1]
Example 3: python reverse list
my_list = [1, 2, 3]
my_list.reverse() # my_list is modified
print(my_list) # '[3, 2, 1]'
my_revert = my_list[::-1] # my_list stays [3, 2, 1]
print(my_revert) # '[1, 2, 3]'
# Item by item reverse with range(<start>, <end>, <step>)
for i in range(len(my_list), 0, -1):
print(my_list[i-1]) # '1' '2' '3'
for i in reversed(range(len(my_list))):
print(my_list[i]) # '1' '2' '3'
Example 4: how to reverse a list in python
mylist
[1, 2, 3, 4, 5]
mylist[::-1]
[5, 4, 3, 2, 1]
Example 5: how to reverse a list in python
my_list = [1, 2, 3, 4, 5]
my_list.reverse()
Example 6: how to reverse array in python
a = [1,2,3,4]
a = a[::-1]
print(a)
>>> [4,3,2,1]