prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  New user signup page question
  Hi i'm trying to understand the user structure. I see a few posts about only being able to assign users to specific projects through the django admin screen, but my question is about the 'sign up' page you get offered when you click login, is this totally non functional? That is, is the *only* way to make new users of any kind through the django admin page?
  
  Thanks,
  Z
  
  </issue>
  <code>
  [start of app/authentification/views.py]
  1 from django.shortcuts import render
  2 from .forms import SignupForm
  3 from django.contrib.sites.shortcuts import get_current_site
  4 from django.utils.encoding import force_bytes
  5 from django.utils.http import urlsafe_base64_encode
  6 from django.template.loader import render_to_string
  7 from .tokens import account_activation_token
  8 from django.core.mail import EmailMessage
  9 from django.views.generic import TemplateView
  10 from django.shortcuts import redirect
  11 
  12 from app import settings
  13 
  14 
  15 class SignupView(TemplateView):
  16     template_name = 'signup.html'
  17     form_class = SignupForm
  18 
  19     def get(self, request, *args, **kwargs):
  20         form = self.form_class()
  21         return render(request, self.template_name, {'form': form, 'allow_signup': bool(settings.ALLOW_SIGNUP)})
  22 
  23     def post(self, request, *args, **kwargs):
  24         form = self.form_class(request.POST)
  25 
  26         # here we make sure that a post request won't trigger a subscription in case allow_signup is False
  27         if not bool(settings.ALLOW_SIGNUP):
  28             return redirect('signup')
  29 
  30         if not hasattr(settings, "EMAIL_BACKEND") and not hasattr(settings, "EMAIL_HOST"):
  31             return render(request, 'email_not_set.html')
  32 
  33         if form.is_valid():
  34             user = form.save(commit=False)
  35             user.is_active = False
  36             user.save()
  37             current_site = get_current_site(request)
  38             mail_subject = 'Activate your account.'
  39             message = render_to_string('acc_active_email.html', {
  40                 'user': user,
  41                 'domain': current_site.domain,
  42                 'uid': urlsafe_base64_encode(force_bytes(user.pk)).decode(),
  43                 'token': account_activation_token.make_token(user),
  44             })
  45             to_email = form.cleaned_data.get('email')
  46             email = EmailMessage(
  47                 mail_subject, message, to=[to_email]
  48             )
  49             email.send()
  50             return render(request, 'validate_mail_address_complete.html')
  51         else:
  52             return render(request, self.template_name, {'form': form, 'allow_signup': bool(settings.ALLOW_SIGNUP)})
  53
  [end of app/authentification/views.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/app/authentification/views.py b/app/authentification/views.py
  --- a/app/authentification/views.py
  +++ b/app/authentification/views.py
  @@ -9,7 +9,7 @@
   from django.views.generic import TemplateView
   from django.shortcuts import redirect
   
  -from app import settings
  +from django.conf import settings
   
   
   class SignupView(TemplateView):
  
verification_info: {"golden_diff": "diff --git a/app/authentification/views.py b/app/authentification/views.py\n--- a/app/authentification/views.py\n+++ b/app/authentification/views.py\n@@ -9,7 +9,7 @@\n from django.views.generic import TemplateView\n from django.shortcuts import redirect\n \n-from app import settings\n+from django.conf import settings\n \n \n class SignupView(TemplateView):\n", "issue": "New user signup page question\nHi i'm trying to understand the user structure. I see a few posts about only being able to assign users to specific projects through the django admin screen, but my question is about the 'sign up' page you get offered when you click login, is this totally non functional? That is, is the *only* way to make new users of any kind through the django admin page?\r\n\r\nThanks,\r\nZ\n", "before_files": [{"content": "from django.shortcuts import render\nfrom .forms import SignupForm\nfrom django.contrib.sites.shortcuts import get_current_site\nfrom django.utils.encoding import force_bytes\nfrom django.utils.http import urlsafe_base64_encode\nfrom django.template.loader import render_to_string\nfrom .tokens import account_activation_token\nfrom django.core.mail import EmailMessage\nfrom django.views.generic import TemplateView\nfrom django.shortcuts import redirect\n\nfrom app import settings\n\n\nclass SignupView(TemplateView):\n    template_name = 'signup.html'\n    form_class = SignupForm\n\n    def get(self, request, *args, **kwargs):\n        form = self.form_class()\n        return render(request, self.template_name, {'form': form, 'allow_signup': bool(settings.ALLOW_SIGNUP)})\n\n    def post(self, request, *args, **kwargs):\n        form = self.form_class(request.POST)\n\n        # here we make sure that a post request won't trigger a subscription in case allow_signup is False\n        if not bool(settings.ALLOW_SIGNUP):\n            return redirect('signup')\n\n        if not hasattr(settings, \"EMAIL_BACKEND\") and not hasattr(settings, \"EMAIL_HOST\"):\n            return render(request, 'email_not_set.html')\n\n        if form.is_valid():\n            user = form.save(commit=False)\n            user.is_active = False\n            user.save()\n            current_site = get_current_site(request)\n            mail_subject = 'Activate your account.'\n            message = render_to_string('acc_active_email.html', {\n                'user': user,\n                'domain': current_site.domain,\n                'uid': urlsafe_base64_encode(force_bytes(user.pk)).decode(),\n                'token': account_activation_token.make_token(user),\n            })\n            to_email = form.cleaned_data.get('email')\n            email = EmailMessage(\n                mail_subject, message, to=[to_email]\n            )\n            email.send()\n            return render(request, 'validate_mail_address_complete.html')\n        else:\n            return render(request, self.template_name, {'form': form, 'allow_signup': bool(settings.ALLOW_SIGNUP)})\n", "path": "app/authentification/views.py"}]}