python - 为什么我的Django表单代码这一行出现关键错误？

class RegisterForm(forms.Form):
    username = forms.CharField(max_length=16, label="Username", required=False)
    password = forms.CharField(max_length=100,widget=forms.PasswordInput, required=False)
    password2 = forms.CharField(max_length=100,widget=forms.PasswordInput, label="Password Again", required=False)
    fullname = forms.CharField(max_length = 100, required=False)
    email = forms.EmailField(max_length=100, required=False)
    def clean_fullname(self):
        if len(self.cleaned_data['fullname']) < 4:
            raise forms.ValidationError("Enter your full name.")
    def clean_email(self):
        if self.cleaned_data['email'].find("@") <= 0:
            raise forms.ValidationError("Enter a valid email address.")
    def clean_username(self):
        if not self.cleaned_data['username']:
            raise forms.ValidationError("Enter a username.")
        try:
            u = User.objects.get(username = self.cleaned_data['username'])
            if u:
                raise forms.ValidationError("Username is taken.")
        except:
            pass
    def clean_password(self):
        if not self.cleaned_data['password']:
            raise forms.ValidationError("Enter a password.")
    def clean_password2(self):
        if not self.cleaned_data['password2']:
            raise forms.ValidationError("Enter your password (again)")

    def clean(self):
        cleaned_data = self.cleaned_data
        password = cleaned_data['password']  <<< There is a key error here anytime I submit a form.
        password2 = cleaned_data['password2']
        if password and password2:
            if password != password2:
                raise forms.ValidationError("Your passwords do not match.")
        return cleaned_data

password = cleaned_data['password']

最佳答案

原因是您的clean_password函数不返回任何内容。你的密码也不清楚
这是验证的顺序：
清除字段名
清洁的
clean_password和clean_password2在有效时需要返回一个值。

def clean_password(self):
    if not self.cleaned_data['password']:
        raise forms.ValidationError("Enter a password.")
    return self.cleaned_data['password']

def clean_password2(self):
    if not self.cleaned_data['password2']:
        raise forms.ValidationError("Enter your password (again)")
    return self.cleaned_data['password2']

尽管建议的保存一些击键的格式（特别是在较长的验证中）是。。。

def clean_password2(self):
    data = self.cleaned_data['password2']
        raise forms.ValidationError("Enter your password (again)")
    return data

关于python - 为什么我的Django表单代码这一行出现关键错误？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/4466726/