给定md5哈希时如何查找特定文件(How to find specific file when given md5 Hash)

 所以你想要做的就是将输入的电子邮件地址转换为小写。 您可以通过继承auth公司并为该字段添加一个干净的方法来完成此操作： 
 
class EmailAuthForm(AuthenticationForm):
    def clean_username(self):
        return self.cleaned_data["username"].lower()
 
 现在通过urls.py在视图中使用它。 
 
url(r'^login/$', auth_views.LoginView.as_view(authentication_form=EmailAuthForm), name="login")

So it seems that all you want to do is convert the entered email address to lower case. You can do this by subclassing the auth firm and adding a clean method for the field:
 
class EmailAuthForm(AuthenticationForm):
    def clean_username(self):
        return self.cleaned_data["username"].lower()
 
And now use this in the view via urls.py.
 
url(r'^login/$', auth_views.LoginView.as_view(authentication_form=EmailAuthForm), name="login")