Python 值错误：太多值无法解包，电子邮件验证

我试图通过forms.py对电子邮件进行验证，但这给了我一个错误，即“值太多，无法解包”，尽管我对django和python编程还不熟悉

这是我的密码：

def clean_email(self):
    email = self.cleaned_data.get('email')
    email_base, provider = email.split("@")
    domain, extension = provider.split('.')
    # if not domain == 'USC':
    #   raise forms.ValidationError("Please make sure you use your USC email.")
    if not extension == "edu":
        raise forms.ValidationError("Please use a valid .EDU email address")
    return email

---

异常情况，

ValueError:要解包的值太多

，是由于将列表解包到大小不匹配的目标变量而导致的。比如说,

>>> a, b, c = 'xxx.yyy.edu'.split('.')      # ['xxx', 'yyy', 'edu']

# too few target variables
>>> a, b = 'xxx.yyy.edu'.split('.')         
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: too many values to unpack

# too many target variables
>>> a, b, c, d = 'xxx.yyy.edu'.split('.')   
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: need more than 3 values to unpack

---

试试这样的

    extension = provider[::-1].split('.')[0]
    # if not domain == 'USC':
    #   raise forms.ValidationError("Please make sure you use your USC email.")
    if not extension == "ude":
        raise forms.ValidationError("Please use a valid .EDU email address")
    return email

---

您的输入数据是什么。这与

.edu.uk

中断。返回

uk

作为扩展名，扩展名为wrong@MosesKoledoye，谢谢你指出这一点。我刚刚编辑了我的答案。

    extension = provider[::-1].split('.')[0]
    # if not domain == 'USC':
    #   raise forms.ValidationError("Please make sure you use your USC email.")
    if not extension == "ude":
        raise forms.ValidationError("Please use a valid .EDU email address")
    return email