old_contents: from django import forms
  
  
  class ContactForm(forms.Form):
      name = forms.CharField(required=False)
      surname = forms.CharField(required=False)
  
      email_address = forms.CharField(required=False)
      msisdn = forms.CharField(label='Contact number', required=False)
      twitter_handle = forms.CharField(required=False)
      facebook_id = forms.CharField(required=False)
      bbm_pin = forms.CharField(required=False)
      gtalk_id = forms.CharField(required=False)
      mxit_id = forms.CharField(required=False)
      wechat_id = forms.CharField(required=False)
      dob = forms.DateTimeField(required=False)
  
      # groups is a special magic field that we add in __init__
      def __init__(self, *args, **kw):
          groups = kw.pop('groups')
          super(ContactForm, self).__init__(*args, **kw)
          self.fields['groups'] = forms.MultipleChoiceField(required=False,
              choices=[(g.key, g.name) for g in groups])
  
      def clean(self):
          """
          None of the fields in this form are required but we don't want to save
          the contact if none of the fields contain any values.
          """
          cleaned_data = super(ContactForm, self).clean()
          if not any(cleaned_data.values()):
              raise forms.ValidationError("Nothing to save.")
          return cleaned_data
  
  
  class ContactGroupForm(forms.Form):
      name = forms.CharField(label="Group name")
  
  
  class SmartGroupForm(forms.Form):
      name = forms.CharField()
      query = forms.CharField()
  
  
  class UploadContactsForm(forms.Form):
      file = forms.FileField(label="File with Contact data",
          help_text="This can either be a double-quoted UTF-8 encoded CSV file "
                      "or an Excel spreadsheet")
  
  
  class SelectContactGroupForm(forms.Form):
      # contact_group is a special magic field that we add in __init__
  
      def __init__(self, *args, **kw):
          groups = kw.pop('groups')
          super(SelectContactGroupForm, self).__init__(*args, **kw)
          self.fields['contact_group'] = forms.ChoiceField(
              label="Select group to store contacts in.",
              help_text="Or provide a name for a new group below.",
              choices=[(g.key, g.name) for g in groups])
  
new_contents: from django import forms
  
  
  class ContactForm(forms.Form):
      name = forms.CharField(required=False)
      surname = forms.CharField(required=False)
  
      email_address = forms.CharField(required=False)
      msisdn = forms.CharField(label='Contact number', required=False)
      twitter_handle = forms.CharField(required=False)
      facebook_id = forms.CharField(required=False)
      bbm_pin = forms.CharField(required=False)
      gtalk_id = forms.CharField(required=False)
      mxit_id = forms.CharField(required=False)
      wechat_id = forms.CharField(required=False)
      dob = forms.DateTimeField(required=False)
  
      # groups is a special magic field that we add in __init__
      def __init__(self, *args, **kw):
          groups = kw.pop('groups')
          super(ContactForm, self).__init__(*args, **kw)
          self.fields['groups'] = forms.MultipleChoiceField(
              required=False, choices=[(g.key, g.name) for g in groups])
  
      def clean(self):
          """
          None of the fields in this form are required but we don't want to save
          the contact if none of the fields contain any values.
          """
          cleaned_data = super(ContactForm, self).clean()
          if not any(cleaned_data.values()):
              raise forms.ValidationError("Nothing to save.")
          return cleaned_data
  
  
  class ContactGroupForm(forms.Form):
      name = forms.CharField(label="Group name")
  
  
  class SmartGroupForm(forms.Form):
      name = forms.CharField()
      query = forms.CharField()
  
  
  class UploadContactsForm(forms.Form):
      file = forms.FileField(
          label="File with Contact data",
          help_text="This can either be a double-quoted UTF-8 encoded CSV file "
                    "or an Excel spreadsheet")
  
  
  class SelectContactGroupForm(forms.Form):
      # contact_group is a special magic field that we add in __init__
  
      def __init__(self, *args, **kw):
          groups = kw.pop('groups')
          super(SelectContactGroupForm, self).__init__(*args, **kw)
          self.fields['contact_group'] = forms.ChoiceField(
              label="Select group to store contacts in.",
              help_text="Or provide a name for a new group below.",
              choices=[(g.key, g.name) for g in groups])
  
subject: Fix PEP8 issues in forms.