关于python：当酒店访问者没有添加有效的电子邮件地址时，我想提出TypeError

I want to raise TypeError when hotel visitor doesn't add valid email address

我想在酒店访客不添加有效的电子邮件地址时引发TypeError，但我收到此错误：

Traceback (most recent call last): File
"/Users/Bex/PycharmProjects/Programmes/OOP/Hotel.py", line 43, in

jane = Hotel.from_string("Jane,Doe,[email protected]") File
"/Users/Bex/PycharmProjects/Programmes/OOP/Hotel.py", line 15, in
from_string
return cls(first_name, last_name, email) File"/Users/Bex/PycharmProjects/Programmes/OOP/Hotel.py", line 25, in
init
raise TypeError("You've entered an invalid email address.") TypeError: You've entered an invalid email address.

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class Hotel:
visitors = 0
rooms = ['single', 'double', 'queen', 'king', 'executive']

@classmethod
def display_no_of_visitors(cls):
if Hotel.visitors > 0:
return"There are currently {} visitor(s)".format(Hotel.visitors)
else:
return"There are no visitors currently at the hotel"
enter code here
@classmethod
def from_string(cls, str):
first_name, last_name, email = str.split(",")
return cls(first_name, last_name, email)

def __init__(self, first_name, last_name, email):
self.first_name = first_name
self.last_name = last_name
for char in email:
if char in"@":
self.email = email
else:
raise TypeError("You've entered an invalid email address.")
Hotel.visitors += 1

@property
def email(self):
return self.email

def __repr__(self):
return"Full Name: {} {}
Email Address: {}".format(self.first_name, self.last_name, self.email)

def full_name(self):
return"{} {}".format(self.first_name, self.last_name)

def checkout(self):
Hotel.visitors -= 1
return"{} {} has checked out".format(self.first_name, self.last_name)

jane = Hotel.from_string("Jane,Doe,[email protected]")

print(jane.first_name)
print(jane.last_name)`enter code here`
print(jane.display_no_of_visitors())
print(jane.email)