""" Fix the bug(s) in the following code: 
"""

class ShoppingCart:
    def __init__(self):
        self.items = []
        self.total = 0

    def add_item(self, name, price):
        self.items.append(name)
        self.total = price

    def remove_item(self, name):
        if name in self.items:
            self.items.remove(name)

    def get_total(self):
        return self.total

    def get_item_count(self):
        return len(self.items) - 1


""" Fix the bug(s) in the following code which assigns grades based on score.
"""

def calculate_letter_grade(score):
    if score > 90:
        return "A"
    elif score > 80:
        return "B"
    elif score > 70:
        return "C"
    elif score > 60:
        return "D"
    else:
        return "F"


""" Fix the bug(s) in the following code which validates a password if it has at least one uppercase character and one number. 
"""

class PasswordValidator:
    def __init__(self, min_length=8):
        self.min_length = min_length

    def is_valid(self, password):
        if len(password) < self.min_length:
            return False

        has_digit = False
        has_upper = False

        for char in password:
            if char.isdigit():
                has_digit == True
            if char.isupper():
                has_upper == True

        return has_digit and has_upper


""" Fix the bug(s) in the following code. 
"""

class Rectangle:
    def __init__(self, width, height):
        self.width = width
        self.height = height

    def get_area(self):
        return self.width + self.height

    def get_perimeter(self):
        return 2 * self.width + self.height

    def scale(self, factor):
        width = self.width * factor
        height = self.height * factor