How to set the email to lowercase on User Creation?

I have a custom auth app. I am trying to only allow emails to be lower case in the database.

I can create a user in the admin with Capitalized letters, even with email.lower() in the create_user method.

Another solution would be to specify to the authenticate that the email can be any case.

user = authenticate(email=email, password=password)

#models.py

class MyUserManager(BaseUserManager):      def create_user(self, username, name, email, company, password, is_manager):          #if not username:          #    raise ValueError('User must have a username')            user = self.model(username=username,              email=MyUserManager.normalize_email(email.lower()),              #email=email.lower(),              name=name, company=company, is_manager=is_manager          )            user.set_password(password)          user.save(using=self._db)            #checks pending teams in the login view          return user        def create_superuser(self, password, username='', email=''):          user = self.create_user(username=username,              name='',              email=email,              company='not_a_companyNAMe',              password=password,              is_manager=False          )          user.is_admin = True          user.is_superuser = True          user.save(using=self._db)          return user      class Users(AbstractBaseUser, PermissionsMixin):      email           = models.EmailField(verbose_name=_('email address'), max_length=255, blank=True, unique=True)      name            = models.CharField(verbose_name=_('Name'), max_length=50, blank=True)      company         = models.CharField(verbose_name=_('Company'), max_length=255, blank=True)      is_manager      = models.BooleanField(default=False, verbose_name=_('Check this box if you are a manager or need to create teams'))      is_active       = models.BooleanField(default=True)      is_admin        = models.BooleanField(default=False)      is_customer     = models.BooleanField(default=False)      datecreated     = models.DateField(auto_now=True)        objects         = MyUserManager()      if settings.LDAP:          username        = models.CharField(verbose_name=_('Username'), max_length=50, unique=True)          USERNAME_FIELD  = 'username'      else:          username        = models.CharField(verbose_name=_('Username'), max_length=50)          USERNAME_FIELD  = 'email'        REQUIRED_FIELDS = []        class Meta:          verbose_name_plural = "Users"

#admin.py

class UserCreationForm(forms.ModelForm):

    password1 = forms.CharField(label='Password', widget=forms.PasswordInput)      password2 = forms.CharField(label='Password confirmation', widget=forms.PasswordInput)      name      = forms.CharField(label='Name', widget=forms.TextInput)      company   = forms.CharField(label='Company', widget=forms.TextInput)      is_manager= forms.BooleanField(label='Manager', required=False)        class Meta:          model = Users        def clean_password2(self):          # Check that the two password entries match          password1 = self.cleaned_data.get("password1")          password2 = self.cleaned_data.get("password2")          if password1 and password2 and password1 != password2:              raise forms.ValidationError("Passwords don't match")          return password2        def save(self, commit=True):          # Save the provided password in hashed format          user = super(UserCreationForm, self).save(commit=False)          user.set_password(self.cleaned_data["password1"])          user.name = self.cleaned_data["name"]          user.company = self.cleaned_data["company"]          user.is_manager = self.cleaned_data['is_manager']          if commit:              user.save()          return user      class UserChangeForm(forms.ModelForm):      password = ReadOnlyPasswordHashField()        class Meta:          model = Users        def clean_password(self):          return self.initial["password"]      class MyUserAdmin(UserAdmin):      form         = UserChangeForm      add_form     = UserCreationForm        readonly_fields = ('last_login',)        list_display = ('name', 'email', 'is_manager', 'company',)      list_editable = ('email', 'is_manager', 'company',)      list_filter = ('is_admin',)      fieldsets = (          (None, {'fields': ('username', 'email', 'name', 'company', 'password')}),          ('Permissions', {'fields': ('is_manager', 'is_admin', 'groups', 'user_permissions')}),          ('Important dates', {'fields': ('last_login',)}),      )      add_fieldsets = (          (None, {              'classes': ('wide',),              'fields': ('email', 'name', 'company', 'password1', 'password2', 'is_manager')}          ),      )      search_fields = ('email', 'name', 'company', 'username',)      ordering = ('email',)      filter_horizontal = ()    admin.site.register(Users, MyUserAdmin)

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