Alexander

class PetAdmin(admin.ModelAdmin):
    ...
    def get_urls(self):
        urls = super(PetAdmin, self).get_urls()
        my_urls = [
            url(r'^(?P<id>\d+)/radius/$', self.admin_site.admin_view(PetAdminRadius))
        ]
        return my_urls + urls

class UserAdmin(admin.ModelAdmin):
    fieldsets = (
        (None, {'fields': ('username', 'password')}),
        (_('Personal info'), {'fields': ('first_name', 'last_name', 'email')}),
        (_('Permissions'), {'fields': ('is_active', 'is_staff', 'is_superuser',
                                       'groups', 'user_permissions')}),
        (_('Important dates'), {'fields': ('last_login', 'date_joined')}),
    )

    add_fieldsets = (
        (None, {
            'classes': ('wide',),
            'fields': ('username', 'password1', 'password2'),
        }),
    )
    def get_fieldsets(self, request, obj=None):
        if not obj:
            return self.add_fieldsets
        return super(UserAdmin, self).get_fieldsets(request, obj)

from django.http import HttpResponse
from django.template.loader import get_template
from django.template import Context
import cStringIO as StringIO
import xhtml2pdf.pisa as pisa

def render_to_pdf(template_src, context_dict, filename='contract.pdf'):
    """ Отдаю PDF файл """
    template = get_template(template_src)
    context = Context(context_dict)
    html = template.render(context)
    result = StringIO.StringIO()
    pdf = pisa.pisaDocument(
        StringIO.StringIO(html.encode('utf-8')),
        result,
        encoding='UTF-8',
        show_error_as_pdf=True
    )
    if not pdf.err:
        response = HttpResponse(result.getvalue(), content_type='application/pdf')
        response['Content-Disposition'] = 'attachment; filename=%s' % filename
        return response
    return HttpResponse(u'We had some errors!')

def contract_text(request):
    text = ContractText.objects.filter(user=request.user)
    return render_to_pdf('pfd_template.html', {'text': text}, 'new_contract.pdf')