The built-in Python
reverse() function is used to reverse the order of objects in a list data structure in place.
This function takes no parameters.
This function does not
list that calls the function is updated in place.
If the function is called by an object that is not a list, an
Attribute Error is returned.
# creating a list listTest1 = [5, 4, 3, 2, 1] # printing the list print("list before reversing: ") print(listTest1) # call reverse on first list listTest1.reverse() print("\nlist after reversing: ") print(listTest1) # list is updated # creating another list listTest2 = ["one", "two", "three", "four", "five"] # printing second list print("\nlist before reversing: ") print(listTest2) # call reverse on second list listTest2.reverse() print("\nlist after reversing: ") print(listTest2) # list is updated # this will throw Attribute Error notAList = 536 # calling reverse with an onject that is not a list notAList.reverse()
reversed() function takes any sequence as an argument and returns a reversed iterator object. The iterator object accesses the objects of the sequence in reverse order.
On the other hand,
reverse() does not take any arguments, nor does it return anything. The changes are made to the original list itself.
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