Python reversed() function
Python reversed() method returns an iterator that accesses the given sequence in the reverse order.
Python reversed() Syntax
reversed(sequ)
Python reversed() Parameters
sequ : Sequence to be reversed.
Python reversed() Returns
returns an iterator that accesses the given sequence in the reverse order.
How to use the reversed method in Python?
Example 1: Demonstration of Python reversed() method
Here we use tuple and range.
Python3
# Python code to demonstrate working of# reversed()# For tupleseqTuple = ('g', 'e', 'e', 'k', 's')print(list(reversed(seqTuple)))# For rangeseqRange = range(1, 5)print(list(reversed(seqRange))) |
Output:
['s', 'k', 'e', 'e', 'g'] [4, 3, 2, 1]
Example 2: reversed() in custom objects
Python3
class gfg: vowels = ['a', 'e', 'i', 'o', 'u'] # Function to reverse the list def __reversed__(self): return reversed(self.vowels)# Main Function if __name__ == '__main__': obj = gfg() print(list(reversed(obj))) |
Output :
['u', 'o', 'i', 'e', 'a']
Example 3: Python List reverse()
Python3
vowels = ['a', 'e', 'i', 'o', 'u']print(list(reversed(vowels))) |
Output:
['u', 'o', 'i', 'e', 'a']
Example 4: Python reverse() string
Python3
str = "Geeksforgeeks"print(list(reversed(str))) |
Output:
['s', 'k', 'e', 'e', 'g', 'r', 'o', 'f', 's', 'k', 'e', 'e', 'G']
Example 5: Python reverse() list
Python3
# For listseqList = [1, 2, 4, 3, 5]print(list(reversed(seqList))) |
Output:
[5, 3, 4, 2, 1]
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