old_contents: from django import forms
  from django.utils.translation import ugettext as _
  
  from account.models import EmailAddress
  
  from kaleo.models import JoinInvitation
  
  
  class InviteForm(forms.Form):
      email_address = forms.EmailField()
  
      def __init__(self, *args, **kwargs):
          self.user = kwargs.pop("user")
          super(InviteForm, self).__init__(*args, **kwargs)
  
      def clean_email_address(self):
          email = self.cleaned_data["email_address"]
          if EmailAddress.objects.filter(email=email, verified=True).exists():
              raise forms.ValidationError(_("Email address already in use"))
          elif JoinInvitation.objects.filter(from_user=self.user, signup_code__email=email).exists():
              raise forms.ValidationError(_("You have already invited this user"))
          return email
  
new_contents: from django import forms
  from django.utils.translation import ugettext as _
  
  from account.models import EmailAddress
  
  from kaleo.models import JoinInvitation
  
  
  class InviteForm(forms.Form):
      email_address = forms.EmailField(label=_("Email"),)
  
      def __init__(self, *args, **kwargs):
          self.user = kwargs.pop("user")
          super(InviteForm, self).__init__(*args, **kwargs)
  
      def clean_email_address(self):
          email = self.cleaned_data["email_address"]
          if EmailAddress.objects.filter(email=email, verified=True).exists():
              raise forms.ValidationError(_("Email address already in use"))
          elif JoinInvitation.objects.filter(from_user=self.user, signup_code__email=email).exists():
              raise forms.ValidationError(_("You have already invited this user"))
          return email
  
subject: Update forms.py