NameError: name 'Paste' is not defined

[leybodv]

Following recipe in Chapter 3 from Designing a pastebin to the point where urls are configured and http://127.0.0.1/pastebin is suggested to be visited, produces error in django server:

Exception in thread django-main-thread:
Traceback (most recent call last):
File "/usr/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
self.run()
File "/usr/lib/python3.10/threading.py", line 953, in run
self._target(*self._args, **self._kwargs)
File "/usr/lib/python3/dist-packages/django/utils/autoreload.py", line 64, in wrapper
fn(*args, **kwargs)
File "/usr/lib/python3/dist-packages/django/core/management/commands/runserver.py", line 118, in inner_run
self.check(display_num_errors=True)
File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 419, in check
all_issues = checks.run_checks(
File "/usr/lib/python3/dist-packages/django/core/checks/registry.py", line 76, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "/usr/lib/python3/dist-packages/django/core/checks/urls.py", line 13, in check_url_config
return check_resolver(resolver)
File "/usr/lib/python3/dist-packages/django/core/checks/urls.py", line 23, in check_resolver
return check_method()
File "/usr/lib/python3/dist-packages/django/urls/resolvers.py", line 416, in check
for pattern in self.url_patterns:
File "/usr/lib/python3/dist-packages/django/utils/functional.py", line 48, in get
res = instance.dict[self.name] = self.func(instance)
File "/usr/lib/python3/dist-packages/django/urls/resolvers.py", line 602, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/usr/lib/python3/dist-packages/django/utils/functional.py", line 48, in get
res = instance.dict[self.name] = self.func(instance)
File "/usr/lib/python3/dist-packages/django/urls/resolvers.py", line 595, in urlconf_module
return import_module(self.urlconf_name)
File "/usr/lib/python3.10/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1050, in _gcd_import
File "", line 1027, in _find_and_load
File "", line 1006, in _find_and_load_unlocked
File "", line 688, in _load_unlocked
File "", line 883, in exec_module
File "", line 241, in _call_with_frames_removed
File "/home/d/nextcloud/programming/django/djen_project/djen_project/urls.py", line 21, in
path('pastebin/', include('pastebin.urls'))
File "/usr/lib/python3/dist-packages/django/urls/conf.py", line 34, in include
urlconf_module = import_module(urlconf_module)
File "/usr/lib/python3.10/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1050, in _gcd_import
File "", line 1027, in _find_and_load
File "", line 1006, in _find_and_load_unlocked
File "", line 688, in _load_unlocked
File "", line 883, in exec_module
File "", line 241, in _call_with_frames_removed
File "/home/d/nextcloud/programming/django/djen_project/pastebin/urls.py", line 2, in
from .views import PasteCreate
File "/home/d/nextcloud/programming/django/djen_project/pastebin/views.py", line 3, in
class PasteCreate(CreateView):
File "/home/d/nextcloud/programming/django/djen_project/pastebin/views.py", line 4, in PasteCreate
model = Paste
NameError: name 'Paste' is not defined