Programa de Python para verificar si una string es palíndromo o no

Dada una string, escriba una función de python para verificar si es palíndromo o no. Se dice que una cuerda es palíndromo si el reverso de la cuerda es igual a cuerda. Por ejemplo, «radar» es un palíndromo, pero «radix» no es un palíndromo.

Ejemplos: 

# function which return reverse of a string
 
def isPalindrome(s):
    return s == s[::-1]
 
 
# Driver code
s = "malayalam"
ans = isPalindrome(s)
 
if ans:
    print("Yes")
else:
    print("No")

# function to check string is
# palindrome or not
def isPalindrome(str):
 
    # Run loop from 0 to len/2
    for i in range(0, int(len(str)/2)):
        if str[i] != str[len(str)-i-1]:
            return False
    return True
 
# main function
s = "malayalam"
ans = isPalindrome(s)
 
if (ans):
    print("Yes")
else:
    print("No")

# function to check string is
# palindrome or not
def isPalindrome(s):
 
    # Using predefined function to
    # reverse to string print(s)
    rev = ''.join(reversed(s))
 
    # Checking if both string are
    # equal or not
    if (s == rev):
        return True
    return False
 
# main function
s = "malayalam"
ans = isPalindrome(s)
 
if (ans):
    print("Yes")
else:
    print("No")

# Python program to check
# if a string is palindrome
# or not
 
x = "malayalam"
 
w = ""
for i in x:
    w = i + w
 
if (x == w):
    print("Yes")
else:
    print("No")

# Python program to check
# if a string is palindrome
# or not
st = 'malayalam'
j = -1
flag = 0
for i in st:
    if i != st[j]:
        flag = 1
        break
    j = j - 1
if flag == 1:
    print("NO")
else:
    print("Yes")

# Recursive function to check if a
# string is palindrome
def isPalindrome(s):
 
    # to change it the string is similar case
    s = s.lower()
    # length of s
    l = len(s)
 
    # if length is less than 2
    if l < 2:
        return True
 
    # If s[0] and s[l-1] are equal
    elif s[0] == s[l - 1]:
 
        # Call is palindrome form substring(1,l-1)
        return isPalindrome(s[1: l - 1])
 
    else:
        return False
 
# Driver Code
s = "MalaYaLam"
ans = isPalindrome(s)
 
if ans:
    print("Yes")
 
else:
    print("No")