Python Django-调用.super（）.clean（）后未列出电子邮件字段

我是Django的新手，如果这是一个基本问题（或错误），我深表歉意，但当我键入电子邮件时，我遇到了电子邮件格式验证方面的问题，如：test@com

我为测试创建了下面的form.py和views.py：

form.py

from django import forms
from django.core import validators

class userForm(forms.Form):
    fname = forms.CharField(label="First name")
    lname = forms.CharField(label="Last name")
    email = forms.EmailField(label="Email")
    vemail = forms.EmailField(label="Email validation")


    def clean(self):
        all_clean_data = super().clean()
        fname = all_clean_data['fname'].lower().capitalize()
        lname = all_clean_data['lname'].lower().capitalize()
        email = all_clean_data['email'].lower()
        vmail = all_clean_data['vemail'].lower()
        if email != vmail:
            raise forms.ValidationError("Email address doesn't match, please try again")

def users(request):
    form = forms.userForm()
    if request.method == 'POST':
        form = forms.userForm(request.POST)
        if form.is_valid():
            print('Validation ok')
    return render(request,"test_app/users.html",{'formName':form})

视图.py

from django import forms
from django.core import validators

class userForm(forms.Form):
    fname = forms.CharField(label="First name")
    lname = forms.CharField(label="Last name")
    email = forms.EmailField(label="Email")
    vemail = forms.EmailField(label="Email validation")


    def clean(self):
        all_clean_data = super().clean()
        fname = all_clean_data['fname'].lower().capitalize()
        lname = all_clean_data['lname'].lower().capitalize()
        email = all_clean_data['email'].lower()
        vmail = all_clean_data['vemail'].lower()
        if email != vmail:
            raise forms.ValidationError("Email address doesn't match, please try again")

def users(request):
    form = forms.userForm()
    if request.method == 'POST':
        form = forms.userForm(request.POST)
        if form.is_valid():
            print('Validation ok')
    return render(request,"test_app/users.html",{'formName':form})

看来一切都很好。。。但是如果在表格（网页）中键入电子邮件地址，如：test@com然后提交表单，会发生两件事：

我在表单上没有收到类似“无效电子邮件格式”的警告 （网页）

所有_clean_数据['email']上的电子邮件“key”不存在 存在

如果我键入以下有效电子邮件：test@test.com，它起作用了。 如果我键入一个无效的电子邮件地址，如：abcde，则会收到一条警告消息

问题是当我键入如下内容时：test@com。。。然后我没有得到任何验证错误消息，提交被触发，但我也没有得到字段

谢谢你的帮助

调试信息下方的

KeyError at /
'email'
Request Method:     POST
Request URL:    http://127.0.0.1:8000/
Django Version:     3.0.3
Exception Type:     KeyError
Exception Value:    
'email'
Exception Location:     /Users/.../test_app/forms.py in clean, line 20
Python Executable:  /Users/.../bin/python
Python Version:     3.8.2
Python Path:    
['/Users/.../test_project/test_project',
 '/Users/.../opt/anaconda3/envs/myDjangoEnv/lib/python38.zip',
 '/Users/.../opt/anaconda3/envs/myDjangoEnv/lib/python3.8',
 '/Users/.../opt/anaconda3/envs/myDjangoEnv/lib/python3.8/lib-dynload',
 '/Users/.../opt/anaconda3/envs/myDjangoEnv/lib/python3.8/site-packages']