I'm new to the Django framework and just trying to create a basic website, but when I try to open the server with the python manage.py runserver I get this error:
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
utility.execute()
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\base.py", line 328, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 60, in execute
super().execute(*args, **options)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\base.py", line 369, in execute
output = self.handle(*args, **options)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 95, in handle
self.run(**options)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\runserver.py", line 102, in run
autoreload.run_with_reloader(self.inner_run, **options)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 601, in run_with_reloader
exit_code = restart_with_reloader()
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\autoreload.py", line 230, in restart_with_reloader
p = subprocess.run(args, env=new_environ, close_fds=False)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\run\__init__.py", line 145, in __new__
process = cls.create_process(command, stdin, cwd=cwd, env=env, shell=shell)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\site-packages\run\__init__.py", line 121, in create_process
shlex.split(command),
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\shlex.py", line 310, in split
return list(lex)
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\shlex.py", line 299, in __next__
token = self.get_token()
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\shlex.py", line 109, in get_token
raw = self.read_token()
File "C:\Users\siuba\AppData\Local\Programs\Python\Python37\lib\shlex.py", line 140, in read_token
nextchar = self.instream.read(1)
AttributeError: 'list' object has no attribute 'read'
Does anyone know the answer? If so please help!
Thanks
Are you following a tutorial? If so, please share it with us. There may be a problem with your python installation. Please delete all python installations on your computer and install the latest version. Then create django project again.
Related
I deleted some migration files that were giving me the error.
Then when I write "python3 manage.py showmigrations" I get the following error:
root#chat-manager:/var/www/jinabot# python3 manage.py makemigrations
Traceback (most recent call last):
File "manage.py", line 23, in <module>
main()
File "manage.py", line 19, in main
execute_from_command_line(sys.argv)
File "/usr/local/lib/python3.7/dist-packages/django/core/management/__init__.py", line 419, in exe
utility.execute()
File "/usr/local/lib/python3.7/dist-packages/django/core/management/__init__.py", line 413, in exe
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python3.7/dist-packages/django/core/management/base.py", line 354, in run_fro
self.execute(*args, **cmd_options)
File "/usr/local/lib/python3.7/dist-packages/django/core/management/base.py", line 398, in execute
output = self.handle(*args, **options)
File "/usr/local/lib/python3.7/dist-packages/django/core/management/base.py", line 89, in wrapped
res = handle_func(*args, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/django/core/management/commands/makemigrations.py", l
loader = MigrationLoader(None, ignore_no_migrations=True)
File "/usr/local/lib/python3.7/dist-packages/django/db/migrations/loader.py", line 53, in __init__
self.build_graph()
File "/usr/local/lib/python3.7/dist-packages/django/db/migrations/loader.py", line 259, in build_g
self.graph.validate_consistency()
File "/usr/local/lib/python3.7/dist-packages/django/db/migrations/graph.py", line 195, in validate
[n.raise_error() for n in self.node_map.values() if isinstance(n, DummyNode)]
File "/usr/local/lib/python3.7/dist-packages/django/db/migrations/graph.py", line 195, in <listcom
[n.raise_error() for n in self.node_map.values() if isinstance(n, DummyNode)]
File "/usr/local/lib/python3.7/dist-packages/django/db/migrations/graph.py", line 58, in raise_err
raise NodeNotFoundError(self.error_message, self.key, origin=self.origin)
django.db.migrations.exceptions.NodeNotFoundError: Migration app.0172_auto_20220603_1746 dependencie
_auto_20220601_2313')
How to fix it?
If you have such an error at the development stage, then I don’t know if this is correct, but I would probably delete all the migrations of the conflicting application and the database too, and then run "python manage.py makemigrations"
(Sorry, comments are not available to me)
$ docker-compose exec myapp python manage.py migrate
I've got this error after modifying my model, how can I rollback or fix the issue ?
Traceback (most recent call last):
File "/src/manage.py", line 21, in <module>
main()
File "/src/manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "/opt/venv/lib/python3.10/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
utility.execute()
File "/opt/venv/lib/python3.10/site-packages/django/core/management/__init__.py", line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/venv/lib/python3.10/site-packages/django/core/management/base.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "/opt/venv/lib/python3.10/site-packages/django/core/management/base.py", line 398, in execute
output = self.handle(*args, **options)
File "/opt/venv/lib/python3.10/site-packages/django/core/management/base.py", line 89, in wrapped
res = handle_func(*args, **kwargs)
File "/opt/venv/lib/python3.10/site-packages/django/core/management/commands/migrate.py", line 268, in handle
emit_post_migrate_signal(
File "/opt/venv/lib/python3.10/site-packages/django/core/management/sql.py", line 42, in emit_post_migrate_signal
models.signals.post_migrate.send(
File "/opt/venv/lib/python3.10/site-packages/django/dispatch/dispatcher.py", line 180, in send
return [
File "/opt/venv/lib/python3.10/site-packages/django/dispatch/dispatcher.py", line 181, in <listcomp>
(receiver, receiver(signal=self, sender=sender, **named))
File "/opt/venv/lib/python3.10/site-packages/adminactions/models.py", line 9, in create_extra_permissions_handler
p.create_extra_permissions()
File "/opt/venv/lib/python3.10/site-packages/adminactions/perms.py", line 34, in create_extra_permissions
content_types = ContentType.objects.get_for_models(*models)
File "/opt/venv/lib/python3.10/site-packages/django/contrib/contenttypes/models.py", line 89, in get_for_models
opts_models = needed_opts.pop(ct.model_class()._meta, [])
AttributeError: 'NoneType' object has no attribute '_meta'
I have some tests in myproject/core/tests/test_views_front.py. When I try to run python manage.py test myproject.core.tests.test_views_front I get:
NOTE: Using test database settings!
NOTE: Logging is disabled!
Traceback (most recent call last):
File "manage.py", line 9, in <module>
execute_from_command_line(sys.argv)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/core/management/__in
it__.py", line 399, in execute_from_command_line
utility.execute()
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/core/management/__in
it__.py", line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/core/management/comm
ands/test.py", line 50, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/core/management/base
.py", line 242, in run_from_argv
self.execute(*args, **options.__dict__)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/core/management/comm
ands/test.py", line 71, in execute
super(Command, self).execute(*args, **options)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/core/management/base
.py", line 285, in execute
output = self.handle(*args, **options)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/south/management/commands/t
est.py", line 8, in handle
super(Command, self).handle(*args, **kwargs)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/core/management/comm
ands/test.py", line 88, in handle
failures = test_runner.run_tests(test_labels)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/test/runner.py", lin
e 144, in run_tests
suite = self.build_suite(test_labels, extra_tests)
File "/home/ben/.virtualenvs/myproject/local/lib/python2.7/site-packages/django/test/runner.py", lin
e 63, in build_suite
tests = self.test_loader.loadTestsFromName(label)
File "/usr/lib/python2.7/unittest/loader.py", line 100, in loadTestsFromName
parent, obj = obj, getattr(obj, part)
AttributeError: 'module' object has no attribute 'test_views_front'
This also happens if I run python manage.py test myproject.core.tests.test_views_front.FrontPageViewTests. However, if I simply run python manage.py test or python manage.py test myproject.core.tests then all the tests (including the ones in the aforementioned file) run fine. I found this solution but my test file seems to import fine, without any errors or warnings. Is there anything else I might be missing?
You can't run test from a specific file in Django. You can either run all the test from myproject.core.tests like you did or a specific TestCase:
myproject.core.tests.YourTestCase
I have a local python environment working, but when I try and load in initial data.
python manage.py loaddata initial_data.json
I get an error about "RemovedInDjango18Warning"?
I am not a python dev to say - so this error is new to me.
C:\Python27\aasoo>python manage.py loaddata initial_data.json
C:\Python27\lib\site-packages\djorm_pgfulltext\models.py:323: RemovedInDjango18Warning: `SearchManagerMixIn.get_query_set` method should be renamed `get_queryset`.
class SearchManager(SearchManagerMixIn, models.Manager):
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line 385, in execute_from_command_line
utility.execute()
File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Python27\lib\site-packages\django\core\management\base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "C:\Python27\lib\site-packages\django\core\management\base.py", line 338, in execute
output = self.handle(*args, **options)
File "C:\Python27\lib\site-packages\modeltranslation\management\commands\loaddata.py", line 50, in handle
return super(Command, self).handle(*fixture_labels, **options)
File "C:\Python27\lib\site-packages\django\core\management\commands\loaddata.py", line 61, in handle
self.loaddata(fixture_labels)
File "C:\Python27\lib\site-packages\django\core\management\commands\loaddata.py", line 91, in loaddata
self.load_label(fixture_label)
File "C:\Python27\lib\site-packages\django\core\management\commands\loaddata.py", line 142, in load_label
for obj in objects:
File "C:\Python27\lib\site-packages\django\core\serializers\json.py", line 81, in Deserializer
six.reraise(DeserializationError, DeserializationError(e), sys.exc_info()[2])
File "C:\Python27\lib\site-packages\django\core\serializers\json.py", line 75, in Deserializer
for obj in PythonDeserializer(objects, **options):
File "C:\Python27\lib\site-packages\django\core\serializers\python.py", line 122, in Deserializer
m2m_data[field.name] = [m2m_convert(pk) for pk in field_value]
django.core.serializers.base.DeserializationError: Problem installing fixture 'C:\Python27\aasoo\content\fixtures\initial_data.json': 'int' object is not iterable
C:\Python27\aasoo>
You should rename get_query_set to get_queryset in SearchManagerMixIn. Can you paste the definition of the class if you need more help.
When I am trying to run makemessages command I get following errors:
(bdm_app)bdm#bdm-VirtualBox:/webapps/bdm_app/bdm$ python manage.py makemessages -l nl
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/webapps/bdm_app/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/webapps/bdm_app/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/webapps/bdm_app/local/lib/python2.7/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "/webapps/bdm_app/local/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/webapps/bdm_app/local/lib/python2.7/site-packages/django/core/management/base.py", line 533, in handle
return self.handle_noargs(**options)
File "/webapps/bdm_app/local/lib/python2.7/site-packages/django/core/management/commands/makemessages.py", line 283, in handle_noargs
potfiles = self.build_potfiles()
File "/webapps/bdm_app/local/lib/python2.7/site-packages/django/core/management/commands/makemessages.py", line 299, in build_potfiles
file_list = self.find_files(".")
File "/webapps/bdm_app/local/lib/python2.7/site-packages/django/core/management/commands/makemessages.py", line 358, in find_files
ignored_roots = [os.path.normpath(p) for p in (settings.MEDIA_ROOT, settings.STATIC_ROOT)]
File "/webapps/bdm_app/lib/python2.7/posixpath.py", line 342, in normpath
initial_slashes = path.startswith('/')
AttributeError: 'NoneType' object has no attribute 'startswith'
I use virtualenv with django 1.7 installed. Any ideas?