Django - How to authenticate a password with MD5 hash

Question

So I'm trying to use the authentication method in my views, but always return "Does not exist", I'm using MD5 hash for my password field, so I don't know if thats the problem

forms.py

class LoginForm(forms.Form):
    email = forms.EmailField()
    password = forms.CharField(widget=forms.PasswordInput)

    #This Method Hash the password
    def clean_password(self):
        clearPassNoHash = self.cleaned_data['password']
        self.password = md5.new(clearPassNoHash).hexdigest()
        return self.password

views.py

def auth_login(request):
    args = {}
    form = LoginForm(request.POST)
    email = request.POST['email']
    password = request.POST['password']
    user = authenticate(email=email, password=password)
    if user is not None:
        login(request, user)
        print("Exist")
    else:
        print("Does not exist")

I've tried with check_password() method(in my forms) that actually works but I don't know why I'm having trouble with the authenticate()

----------------------------- UPDATE --------------------------------

Views.py

def auth_login(request):
    args = {}
    form = LoginForm(request.POST)
    if form.is_valid():
        username = form.cleaned_data['username']
        password = form.cleaned_data['password']

        user = authenticate(username=username, password=password)
        if user is not None:
            print("existe")
            print user
        else:
            print user

    args['form'] = form
    return render(request, 'login/login.html', args)

forms.py

class LoginForm(forms.Form):
    username = forms.CharField()
    password = forms.CharField(widget=forms.PasswordInput)

Other observation: I have this in my settings.py to use my custom model

AUTH_PROFILE_MODULE = 'StudentUsers.StudentRegistration'

and this is the username field I add to my model:

class StudentRegistration(AbstractBaseUser, models.Model):
    username = models.CharField(max_length = 25, null=False, default="", unique=True)

Answer 1

You need to get the email and password from the form's cleaned_data, not from the request directly. Read more on the cleaned_data attribute from the docs : https://docs.djangoproject.com/en/1.9/ref/forms/api/#django.forms.Form.cleaned_data

password = form.cleaned_data['password']

Answer 2

You should not be hashing the password value yourself. That is what authenticate already does; so in effect you are hashing twice.