text: from django import forms
  from django.contrib.auth.forms import UserCreationForm
  from django.contrib.auth.forms import PasswordChangeForm
  from django.contrib.auth.forms import SetPasswordForm
  from django.contrib.auth.models import User
  from django.forms import EmailField
  from .models import Tracker, Route, GPSPoint
  
  class UserCreationForm(UserCreationForm):
      email = EmailField(label=("E-Mail:"), required=True,
          help_text=("Required."))
  
      class Meta:
          model = User
          fields = ("username", "email", "password1", "password2")
  
      def save(self, commit=True):
          user = super(UserCreationForm, self).save(commit=False)
          user.email = self.cleaned_data["email"]
          if commit:
              user.save()
          return user
  
  
  class UserForm(forms.ModelForm):
      email = EmailField(label=("E-Mail:"), required=True,
                         help_text=("Required."))
  
      class Meta:
          model = User
          fields = ['email']
  
  
  class AddForm(forms.ModelForm):
  
      device_name = forms.CharField(label='Device Name:', max_length=50)
      device_eui = forms.CharField(label='Device EUI:', max_length=50)
  
      class Meta:
          model = Tracker
          fields = ("device_name", "device_eui")
  