Reverse a string in Python

Question

There is no built in reverse function for Python\'s str object. What is the best way of implementing this method?

If supplying a very conci

Answer 1

This class uses python magic functions to reverse a string:

class Reverse(object):
    """ Builds a reverse method using magic methods """

    def __init__(self, data):
        self.data = data
        self.index = len(data)


    def __iter__(self):
        return self

    def __next__(self):
        if self.index == 0:
            raise StopIteration

        self.index = self.index - 1
        return self.data[self.index]


REV_INSTANCE = Reverse('hello world')

iter(REV_INSTANCE)

rev_str = ''
for char in REV_INSTANCE:
    rev_str += char

print(rev_str)  

Output

dlrow olleh

Reference