这个是什么原因，请问怎么处理
Exception in thread django-main-thread:
Traceback (most recent call last):
File "D:\Python36\lib\threading.py", line 916, in _bootstrap_inner
self.run()
File "D:\Python36\lib\threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\ASUS\PycharmProjects\Django\test1\venv\lib\site-packages\django\utils\autoreload.py", line 54, in wrapp
er
fn(*args, **kwargs)
File "C:\Users\ASUS\PycharmProjects\Django\test1\venv\lib\site-packages\django\core\management\commands\runserver.py",
line 139, in inner_run
ipv6=self.use_ipv6, threading=threading, server_cls=self.server_cls)
File "C:\Users\ASUS\PycharmProjects\Django\test1\venv\lib\site-packages\django\core\servers\basehttp.py", line 203, in
run
httpd = httpd_cls(server_address, WSGIRequestHandler, ipv6=ipv6)
File "C:\Users\ASUS\PycharmProjects\Django\test1\venv\lib\site-packages\django\core\servers\basehttp.py", line 67, in
__init__
super().__init__(*args, **kwargs)
File "D:\Python36\lib\socketserver.py", line 453, in __init__
self.server_bind()
File "D:\Python36\lib\wsgiref\simple_server.py", line 50, in server_bind
HTTPServer.server_bind(self)
File "D:\Python36\lib\http\server.py", line 138, in server_bind
self.server_name = socket.getfqdn(host)
File "D:\Python36\lib\socket.py", line 673, in getfqdn
hostname, aliases, ipaddrs = gethostbyaddr(name)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc3 in position 2: invalid continuation byte

某个地方出现了编码错误

解决了吗楼主

朋友，django报错，下面有人说是要降低django的版本，不降低不行吗？你搞定了吗？我想请教下这个怎末办呢？

同问题，求解决！

楼主解决了嘛，什么问题啊？

请问这个解决了吗？

求问，顶顶顶！
wsh@wsh-virtual-machine:~/mysite1$ python3 manage.py runserver
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/threading.py", line 926, in _bootstrap_inner
self.run()
File "/usr/local/lib/python3.7/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "/usr/local/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
File "/usr/local/lib/python3.7/site-packages/django/utils/autoreload.py", line 77, in raise_last_exception
raise _exception[1]
File "/usr/local/lib/python3.7/site-packages/django/core/management/__init__.py", line 337, in execute
autoreload.check_errors(django.setup)()
File "/usr/local/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/usr/local/lib/python3.7/site-packages/django/apps/registry.py", line 114, in populate
app_config.import_models()
File "/usr/local/lib/python3.7/site-packages/django/apps/config.py", line 211, in import_models
self.models_module = import_module(models_module_name)
File "/usr/local/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/usr/local/lib/python3.7/site-packages/django/contrib/auth/models.py", line 2, in <module>
from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
File "/usr/local/lib/python3.7/site-packages/django/contrib/auth/base_user.py", line 47, in <module>
class AbstractBaseUser(models.Model):
File "/usr/local/lib/python3.7/site-packages/django/db/models/base.py", line 117, in __new__
new_class.add_to_class('_meta', Options(meta, app_label))
File "/usr/local/lib/python3.7/site-packages/django/db/models/base.py", line 321, in add_to_class
value.contribute_to_class(cls, name)
File "/usr/local/lib/python3.7/site-packages/django/db/models/options.py", line 204, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
File "/usr/local/lib/python3.7/site-packages/django/db/__init__.py", line 28, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/usr/local/lib/python3.7/site-packages/django/db/utils.py", line 201, in __getitem__
backend = load_backend(db['ENGINE'])
File "/usr/local/lib/python3.7/site-packages/django/db/utils.py", line 110, in load_backend
return import_module('%s.base' % backend_name)
File "/usr/local/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py", line 13, in <module>
from sqlite3 import dbapi2 as Database
File "/usr/local/lib/python3.7/sqlite3/__init__.py", line 23, in <module>
from sqlite3.dbapi2 import *
File "/usr/local/lib/python3.7/sqlite3/dbapi2.py", line 27, in <module>
from _sqlite3 import *
ModuleNotFoundError: No module named '_sqlite3'

解决了吗

hostname, aliases, ipaddrs = gethostbyaddr(name) 查询你setting 里面数据库的设置，报错是讲你数据库连接字符串无效。目前看你的数据库连接设置不能说没有，就是虚无。