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Python | reversed method
schedule Aug 12, 2023
Last updated local_offer
Tags Python
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Python's reversed(~) method returns a reverse iterator from the input sequence.
Parameters
1. seq | sequence
The sequence to return the reverse iterator for.
Return value
Returns a reverse iterator from the input sequence.
Examples
Basic usage
To return a reverse iterator and create a list based off of it:
list(reversed('Hello'))
['o', 'l', 'l', 'e', 'H']
reversed('Hello') returns a reverse iterator which we in turn pass as input to list(~) to generate a list from it.
To return a reverse iterator and print each item:
a = ['Apple', 'Pineapple', 'Mango', 'Pear']reverse_iterator = reversed(a)for element in reverse_iterator: print(element)
PearMangoPineappleApple
We return a reverse iterator from reversed(a) and store it to reverse_iterator. We then proceed to loop through each element in reverse_iterator and print it. Notice that we print the elements in the original list a in reverse order.
Published by Arthur Yanagisawa
Edited by 0 others
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Official Python Documentation
https://docs.python.org/3/library/functions.html#reversed
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