python reverse string

1# in order to make a string reversed in python 
2# you have to use the slicing as following
3
4string = "racecar"
5print(string[::-1])
6

1'hello world'[::-1]
2'dlrow olleh'

1str="Python" # initial string
2stringlength=len(str) # calculate length of the list
3slicedString=str[stringlength::-1] # slicing 
4print (slicedString) # print the reversed string

1#linear
2
3def reverse(s): 
4  str = "" 
5  for i in s: 
6    str = i + str
7  return str
8
9#splicing
10'hello world'[::-1]

1reversed_string = input_string[::-1]

1>>> 'a string'[::-1]
2'gnirts a'