在Django中使用python manage.py runserver时未显示服务器地址

问题描述

在运行python manage.py runserver时出现此错误，如下所示。使用pycharm

(venv) C:\Users\User\PycharmProjects\PyShop>python manage.py runserver
Watching for file changes with StatReloader
Performing system checks...

Exception in thread django-main-thread:
Traceback (most recent call last):
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\utils.py",line 66,in __getitem__
    return self._engines[alias]
KeyError: 'django'

During handling of the above exception,another exception occurred:

Traceback (most recent call last):
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\backends\d
jango.py",line 121,in get_package_libraries
    module = import_module(entry[1])
  File "C:\Users\User\AppData\Local\Programs\Python\python37-32\lib\importlib\__init__.py",li
ne 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 "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\contrib\admin\templ
atetags\admin_static.py",line 5,in <module>
    from django.utils.deprecation import Removedindjango30Warning
ImportError: cannot import name 'Removedindjango30Warning' from 'django.utils.deprecation' (C:
\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\utils\deprecation.py)

During handling of the above exception,another exception occurred:

Traceback (most recent call last):
  File "C:\Users\User\AppData\Local\Programs\Python\python37-32\lib\threading.py",line 917,i
n _bootstrap_inner
    self.run()
  File "C:\Users\User\AppData\Local\Programs\Python\python37-32\lib\threading.py",line 865,i
n run
    self._target(*self._args,**self._kwargs)
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\utils\autoreload.py
",line 53,in wrapper
    fn(*args,**kwargs)
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\core\management\com
mands\runserver.py",line 118,in inner_run
    self.check(display_num_errors=True)
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\core\management\bas
e.py",line 396,in check
    databases=databases,File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\core\checks\registr
y.py",line 70,in run_checks
    new_errors = check(app_configs=app_configs,databases=databases)
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\contrib\admin\check
s.py",line 78,in check_dependencies
    for engine in engines.all():
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\utils.py",line 90,in all
    return [self[alias] for alias in self]
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\utils.py",in <listcomp>
    return [self[alias] for alias in self]
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\utils.py",line 81,in __getitem__
    engine = engine_cls(params)
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\backends\d
jango.py",line 25,in __init__
    options['libraries'] = self.get_templatetag_libraries(libraries)
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\backends\d
jango.py",line 43,in get_templatetag_libraries
    libraries = get_installed_libraries()
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\backends\d
jango.py",line 108,in get_installed_libraries
    for name in get_package_libraries(pkg):
  File "C:\Users\User\PycharmProjects\PyShop\venv\lib\site-packages\django\template\backends\d
jango.py",line 125,in get_package_libraries
    "trying to load '%s': %s" % (entry[1],e)
django.template.library.InvalidTemplateLibrary: Invalid template library specified. ImportErro
r raised when trying to load 'django.contrib.admin.templatetags.admin_static': cannot import n
ame 'Removedindjango30Warning' from 'django.utils.deprecation' (C:\Users\User\PycharmProjects\
PyShop\venv\lib\site-packages\django\utils\deprecation.py)

解决方法

这是由Django版本引起的。您可能对其进行了升级 如您所见，在Django版本中存在冲突

ImportError：无法导入名称'RemovedInDjango30Warning'

因此，您可以尝试创建虚拟环境，然后先卸载然后重新安装

pip uninstall django

然后安装低于3.0的另一个版本

pip install django==2.2