reversing a string

 Python 3.9.1 (tags/v3.9.1:1e5d33e, Dec  7 2020, 17:08:21) [MSC v.1927 64 bit (AMD64)] on win32

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>>> name="Aamir"

>>> string[::,-1]

Traceback (most recent call last):

  File "<pyshell#1>", line 1, in <module>

    string[::,-1]

NameError: name 'string' is not defined

>>> string[::-1]

Traceback (most recent call last):

  File "<pyshell#2>", line 1, in <module>

    string[::-1]

NameError: name 'string' is not defined

>>> name[::]

'Aamir'

>>> name[::-1]

'rimaA'

>>> ##if step value is negative then it start from last upto begining.

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