prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Prepare AMY staging instance for actual use
  New test AMY server is running, but it lacks some features from the other server.
  
  - [x] Run fixtures (should be accompanied by #2239)
  - [x] Scaffold non-admin users for AMY database
  - [ ] Add default admin user
  
  </issue>
  <code>
  [start of amy/workshops/management/commands/create_superuser.py]
  1 from django.core.management.base import BaseCommand, CommandError
  2 
  3 from communityroles.models import CommunityRole, CommunityRoleConfig
  4 from workshops.models import Person
  5 
  6 
  7 class Command(BaseCommand):
  8     args = "no arguments"
  9     help = 'Create a superuser called "admin" with password "admin".'
  10 
  11     def handle(self, *args, **options):
  12         try:
  13             admin = Person.objects.create_superuser(
  14                 username="admin",
  15                 personal="admin",
  16                 family="admin",
  17                 email="admin@example.org",
  18                 password="admin",
  19             )
  20             print("Created admin user")
  21 
  22             role_config = CommunityRoleConfig.objects.get(name="instructor")
  23             CommunityRole.objects.create(
  24                 config=role_config,
  25                 person=admin,
  26             )
  27             print("Assigned Instructor community role to admin user")
  28 
  29         except Exception as e:
  30             raise CommandError("Failed to create admin: {0}".format(str(e)))
  31
  [end of amy/workshops/management/commands/create_superuser.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/amy/workshops/management/commands/create_superuser.py b/amy/workshops/management/commands/create_superuser.py
  --- a/amy/workshops/management/commands/create_superuser.py
  +++ b/amy/workshops/management/commands/create_superuser.py
  @@ -9,9 +9,15 @@
       help = 'Create a superuser called "admin" with password "admin".'
   
       def handle(self, *args, **options):
  +        username = "admin"
  +
  +        if Person.objects.filter(username=username).exists():
  +            print("Admin user exists, quitting.")
  +            return
  +
           try:
               admin = Person.objects.create_superuser(
  -                username="admin",
  +                username=username,
                   personal="admin",
                   family="admin",
                   email="admin@example.org",
  
verification_info: {"golden_diff": "diff --git a/amy/workshops/management/commands/create_superuser.py b/amy/workshops/management/commands/create_superuser.py\n--- a/amy/workshops/management/commands/create_superuser.py\n+++ b/amy/workshops/management/commands/create_superuser.py\n@@ -9,9 +9,15 @@\n     help = 'Create a superuser called \"admin\" with password \"admin\".'\n \n     def handle(self, *args, **options):\n+        username = \"admin\"\n+\n+        if Person.objects.filter(username=username).exists():\n+            print(\"Admin user exists, quitting.\")\n+            return\n+\n         try:\n             admin = Person.objects.create_superuser(\n-                username=\"admin\",\n+                username=username,\n                 personal=\"admin\",\n                 family=\"admin\",\n                 email=\"admin@example.org\",\n", "issue": "Prepare AMY staging instance for actual use\nNew test AMY server is running, but it lacks some features from the other server.\r\n\r\n- [x] Run fixtures (should be accompanied by #2239)\r\n- [x] Scaffold non-admin users for AMY database\r\n- [ ] Add default admin user\n", "before_files": [{"content": "from django.core.management.base import BaseCommand, CommandError\n\nfrom communityroles.models import CommunityRole, CommunityRoleConfig\nfrom workshops.models import Person\n\n\nclass Command(BaseCommand):\n    args = \"no arguments\"\n    help = 'Create a superuser called \"admin\" with password \"admin\".'\n\n    def handle(self, *args, **options):\n        try:\n            admin = Person.objects.create_superuser(\n                username=\"admin\",\n                personal=\"admin\",\n                family=\"admin\",\n                email=\"admin@example.org\",\n                password=\"admin\",\n            )\n            print(\"Created admin user\")\n\n            role_config = CommunityRoleConfig.objects.get(name=\"instructor\")\n            CommunityRole.objects.create(\n                config=role_config,\n                person=admin,\n            )\n            print(\"Assigned Instructor community role to admin user\")\n\n        except Exception as e:\n            raise CommandError(\"Failed to create admin: {0}\".format(str(e)))\n", "path": "amy/workshops/management/commands/create_superuser.py"}]}