old_contents: from django.db import models
  from django.utils.translation import ugettext_lazy as _
  from django.core.urlresolvers import reverse_lazy as reverse
  from django import forms
  from django.forms.util import ErrorList
  from django.contrib.auth.admin import UserAdmin
  from django.contrib import admin
  
  from apps.accounts.models import User
  
  # UserAdmin.list_display += ('field', )
  
  
  class UserCreationForm(forms.ModelForm):
      error_messages = {
          'duplicate_username': _("A user with that username already exists."),
          'password_mismatch': _("The two password fields didn't match."),
      }
      username = forms.RegexField(label=_("Username"), max_length=30,
          regex=r'^[\w.@+-]+$',
          help_text=_("Required. 30 characters or fewer. Letters, digits and "
                        "@/./+/-/_ only."),
          error_messages={
              'invalid': _("This value may contain only letters, numbers and "
                           "@/./+/-/_ characters.")})
      password1 = forms.CharField(label=_("Password"),
          widget=forms.PasswordInput)
      password2 = forms.CharField(label=_("Password confirmation"),
          widget=forms.PasswordInput,
          help_text=_("Enter the same password as above, for verification."))
  
      def clean_username(self):
          # Since User.username is unique, this check is redundant,
          # but it sets a nicer error message than the ORM. See #13147.
          username = self.cleaned_data["username"]
          try:
              User._default_manager.get(username=username)
          except User.DoesNotExist:
              return username
          raise forms.ValidationError(self.error_messages['duplicate_username'])
  
      def clean_password2(self):
          password1 = self.cleaned_data.get("password1")
          password2 = self.cleaned_data.get("password2")
          if password1 and password2 and password1 != password2:
              raise forms.ValidationError(
                  self.error_messages['password_mismatch'])
          return password2
  
      def save(self, commit=True):
          user = super(UserCreationForm, self).save(commit=False)
          user.set_password(self.cleaned_data["password1"])
          if commit:
              user.save()
          return user
  
      class Meta:
          model = User
          fields = ('username', )
  
  
  class UserAdminForm(forms.ModelForm):
      class Meta:
          model = User
  
  
  UserAdmin.form = UserAdminForm
  UserAdmin.add_form = UserCreationForm
  
  UserAdmin.fieldsets[1][1]['fields'] = ('first_name', 'last_name', 'email', 'is_translator', 'is_manager', )
  admin.site.register(User, UserAdmin)
  
new_contents: from django.db import models
  from django.utils.translation import ugettext_lazy as _
  from django.core.urlresolvers import reverse_lazy as reverse
  from django import forms
  from django.forms.util import ErrorList
  from django.contrib.auth.admin import UserAdmin
  from django.contrib import admin
  
  from apps.accounts.models import User
  
  # UserAdmin.list_display += ('field', )
  
  
  class UserCreationForm(forms.ModelForm):
      error_messages = {
          'duplicate_username': _("A user with that username already exists."),
          'password_mismatch': _("The two password fields didn't match."),
      }
      username = forms.RegexField(label=_("Username"), max_length=30,
          regex=r'^[\w.@+-]+$',
          help_text=_("Required. 30 characters or fewer. Letters, digits and "
                        "@/./+/-/_ only."),
          error_messages={
              'invalid': _("This value may contain only letters, numbers and "
                           "@/./+/-/_ characters.")})
      password1 = forms.CharField(label=_("Password"),
          widget=forms.PasswordInput)
      password2 = forms.CharField(label=_("Password confirmation"),
          widget=forms.PasswordInput,
          help_text=_("Enter the same password as above, for verification."))
  
      def clean_username(self):
          # Since User.username is unique, this check is redundant,
          # but it sets a nicer error message than the ORM. See #13147.
          username = self.cleaned_data["username"]
          try:
              User._default_manager.get(username=username)
          except User.DoesNotExist:
              return username
          raise forms.ValidationError(self.error_messages['duplicate_username'])
  
      def clean_password2(self):
          password1 = self.cleaned_data.get("password1")
          password2 = self.cleaned_data.get("password2")
          if password1 and password2 and password1 != password2:
              raise forms.ValidationError(
                  self.error_messages['password_mismatch'])
          return password2
  
      def save(self, commit=True):
          user = super(UserCreationForm, self).save(commit=False)
          user.set_password(self.cleaned_data["password1"])
          if commit:
              user.save()
          return user
  
      class Meta:
          model = User
          fields = ('username', )
  
  
  class UserAdminForm(forms.ModelForm):
      class Meta:
          model = User
  
  
  UserAdmin.form = UserAdminForm
  UserAdmin.add_form = UserCreationForm
  
  UserAdmin.fieldsets[1][1]['fields'] = ('first_name', 'last_name', 'email', )
  admin.site.register(User, UserAdmin)
  
subject: update accounts admin