Method pop

data_structures/stacks/stack.py:57–74

Pop an element off of the top of the stack. >>> S = Stack() >>> S.push(-5) >>> S.push(10) >>> S.pop() 10 >>> Stack().pop() Traceback (most recent call last): ... data_structures.stacks.stack.StackUnderflowError

(self)

        self.stack.append(data)

    def pop(self) -> T:
        """
        Pop an element off of the top of the stack.

        >>> S = Stack()
        >>> S.push(-5)
        >>> S.push(10)
        >>> S.pop()
        10

        >>> Stack().pop()
        Traceback (most recent call last):
            ...
        data_structures.stacks.stack.StackUnderflowError
        """
        if not self.stack:
            raise StackUnderflowError
        return self.stack.pop()

    def peek(self) -> T:
        """