Untitled

class Phone():
    ALL_CHECKS = False
    
    def __init__(self, phone_num):
        self.phone_num = phone_num
        Phone.ALL_CHECKS = self.check_plus(phone_num) and Phone.check_plus(phone_num)

    @classmethod
    def total_check(cls):
        return cls.ALL_CHECKS

    @staticmethod
    def check_plus(self):
        if self[0] == "+":
            return True
        else:
            try:
                if isinstance(int(self[0]), int):
                    if self[0] == "8":
                        return False
                    else:
                        raise Exception
            except:
                print("Phone number is not a number :)")
    
    @staticmethod
    def num_validation(self):
        plus = Phone.check_plus(self)
        if plus:
            try:
                num = int(self[1:])
                if len(str(num)) == 11:
                    return True
                else:
                    return False
            except:
                print("Phone number is not a number :)")
        else:
            try:
                num = int(self[1:])
                if len(str(num)) == 10:
                    return True
                else:
                    return False
            except:
                print("Phone number is not a number :)")

print(Phone.num_validation("89601079685"))
print(Phone.num_validation("89601079685123"))
ph = Phone("89601079685")
print(ph.total_check())
ph2 = Phone("+79601079685")
print(ph2.total_check())