n=input("Please enter a string:") def rvs(n): if n=="": return n else: return rvs(n[1:])+n[0]

This code defines a function called "rvs" that takes a string argument "n" and recursively reverses it. The function checks if the string is empty and returns it as is if it is. Otherwise, it calls itself with the substring of "n" starting from the second character and concatenates the first character at the end. This process continues until the entire string is reversed.

However, there is an error in the code as the last line of the function is not indented properly and is not part of the function. It should be removed or indented to be part of the function.