prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Can't add user via admin panel
  
  
  </issue>
  <code>
  [start of hs_core/admin.py]
  1 from mezzanine.pages.admin import PageAdmin
  2 from django.contrib.gis import admin
  3 from django.contrib.contenttypes.admin import GenericTabularInline
  4 from .models import *
  5 
  6 class InlineResourceFiles(GenericTabularInline):
  7     model = ResourceFile
  8 
  9 class GenericResourceAdmin(PageAdmin):
  10     inlines = PageAdmin.inlines + [InlineResourceFiles]
  11 
  12 admin.site.register(GenericResource, GenericResourceAdmin)
  13
  [end of hs_core/admin.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/hs_core/admin.py b/hs_core/admin.py
  --- a/hs_core/admin.py
  +++ b/hs_core/admin.py
  @@ -1,12 +1,35 @@
  -from mezzanine.pages.admin import PageAdmin
  +from django import forms
  +from django.contrib.auth.admin import UserAdmin
  +from django.contrib.auth.forms import UserCreationForm
  +from django.contrib.auth.models import User
   from django.contrib.gis import admin
   from django.contrib.contenttypes.admin import GenericTabularInline
  +from django.utils.translation import ugettext_lazy as _
  +
  +from mezzanine.pages.admin import PageAdmin
  +
   from .models import *
   
  +
  +class UserCreationFormExtended(UserCreationForm):
  +    def __init__(self, *args, **kwargs):
  +        super(UserCreationFormExtended, self).__init__(*args, **kwargs)
  +        self.fields['email'] = forms.EmailField(label=_("E-mail"), max_length=75)
  +
  +UserAdmin.add_form = UserCreationFormExtended
  +UserAdmin.add_fieldsets = (
  +    (None, {
  +        'classes': ('wide',),
  +        'fields': ('email', 'username', 'password1', 'password2',)
  +    }),
  +)
  +
   class InlineResourceFiles(GenericTabularInline):
       model = ResourceFile
   
   class GenericResourceAdmin(PageAdmin):
       inlines = PageAdmin.inlines + [InlineResourceFiles]
   
  +admin.site.unregister(User)
  +admin.site.register(User, UserAdmin)
   admin.site.register(GenericResource, GenericResourceAdmin)
  
verification_info: {"golden_diff": "diff --git a/hs_core/admin.py b/hs_core/admin.py\n--- a/hs_core/admin.py\n+++ b/hs_core/admin.py\n@@ -1,12 +1,35 @@\n-from mezzanine.pages.admin import PageAdmin\n+from django import forms\n+from django.contrib.auth.admin import UserAdmin\n+from django.contrib.auth.forms import UserCreationForm\n+from django.contrib.auth.models import User\n from django.contrib.gis import admin\n from django.contrib.contenttypes.admin import GenericTabularInline\n+from django.utils.translation import ugettext_lazy as _\n+\n+from mezzanine.pages.admin import PageAdmin\n+\n from .models import *\n \n+\n+class UserCreationFormExtended(UserCreationForm):\n+    def __init__(self, *args, **kwargs):\n+        super(UserCreationFormExtended, self).__init__(*args, **kwargs)\n+        self.fields['email'] = forms.EmailField(label=_(\"E-mail\"), max_length=75)\n+\n+UserAdmin.add_form = UserCreationFormExtended\n+UserAdmin.add_fieldsets = (\n+    (None, {\n+        'classes': ('wide',),\n+        'fields': ('email', 'username', 'password1', 'password2',)\n+    }),\n+)\n+\n class InlineResourceFiles(GenericTabularInline):\n     model = ResourceFile\n \n class GenericResourceAdmin(PageAdmin):\n     inlines = PageAdmin.inlines + [InlineResourceFiles]\n \n+admin.site.unregister(User)\n+admin.site.register(User, UserAdmin)\n admin.site.register(GenericResource, GenericResourceAdmin)\n", "issue": "Can't add user via admin panel\n\n", "before_files": [{"content": "from mezzanine.pages.admin import PageAdmin\nfrom django.contrib.gis import admin\nfrom django.contrib.contenttypes.admin import GenericTabularInline\nfrom .models import *\n\nclass InlineResourceFiles(GenericTabularInline):\n    model = ResourceFile\n\nclass GenericResourceAdmin(PageAdmin):\n    inlines = PageAdmin.inlines + [InlineResourceFiles]\n\nadmin.site.register(GenericResource, GenericResourceAdmin)\n", "path": "hs_core/admin.py"}]}