String reversal in Python

Question

I have taken an integer input and tried to reverse it in Python but in vain! I changed it into a string but still I am not able to. Is there any way to reverse it ? Is there any built-in function?

I am not able to convert the integer into a list so not able to apply the reverse fuction.

Answer 1

Code:

>>> n = 1234
>>> print str(n)[::-1]
4321

Answer 2

You can use the slicing operator to reverse a string:

s = "hello, world"
s = s[::-1]
print s  # prints "dlrow ,olleh"

To convert an integer to a string, reverse it, and convert it back to an integer, you can do:

x = 314159
x = int(str(x)[::-1])
print x  # prints 951413

Answer 3

>>> int(''.join(reversed(str(12345))))
54321