Checks For Brackets

check_brackets.py

# python3

import sys

class Bracket:
    def __init__(self, bracket_type, position):
        self.bracket_type = bracket_type
        self.position = position

    def Match(self, c):
        if self.bracket_type == '[' and c == ']':
            return True
        if self.bracket_type == '{' and c == '}':
            return True
        if self.bracket_type == '(' and c == ')':
            return True
        return False


class Stack:
    def __init__(self):
        self.elements = []
    def isEmpty(self):
        if len(self.elements) == 0:
            return True
        else:
            return False

    def push(self, element):
        self.elements.append(element)

    def pop(self):
        return self.elements.pop()

    def peek(self):
        return self.elements[(len(self.elements)-1)]

    def size(self):
        return len(self.elements)
    
    
if __name__ == "__main__":
    text = sys.stdin.read()
    brackets = Stack()

    opening_brackets_stack = []
    for i, next in enumerate(text):

        if next == '(' or next == '[' or next == '{':
            bracket = Bracket(next, i)
            brackets.push(bracket)
            pass

        if next == ')' or next == ']' or next == '}':
            if brackets.isEmpty() == True:
                bracket = Bracket(next, i)
                brackets.push(bracket)
                break

            topBracket = brackets.peek()
            isMatch = topBracket.Match(next)

            if isMatch:
                brackets.pop()
                pass
            else:
                bracket = Bracket(next, i)
                brackets.push(bracket)
                break


    if brackets.isEmpty():
        print("Success")
    else:
        print(brackets.elements[-1].position + 1)