check whether a string is palindrome or not

palindromeCheck.py

class Stack:
    def __init__(self):
        self.items = []
		
    def push(self, item):
		self.items.append(item)
		
    def pop(self):
		return self.items.pop()
	
    def peek(self):
		return self.items[0]
		
    def isEmpty(self):
		return len(self.items) == 0


def isPalindrome(text):
    s = Stack()
    for c in text:
        s.push(c)
    revText = ""
    while not s.isEmpty():
        revText += s.pop()

    return text == revText

##test
print(isPalindrome("abcba"))
print(isPalindrome("abbbc"))