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django - Django startserver 无法识别内置 python 库？

问题描述

我正在运行 Python 3.7 和 Django 2.1 我是第一次使用 Django。我已经建立了一个虚拟环境来运行我的项目。我已经使用 pip 将 django 导入到虚拟环境中，但是当我尝试发出命令时

python manage.py runserver

我收到以下错误代码

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x00000203257A1B70>
Traceback (most recent call last):
  File "C:\Environments\django_env\lib\site-packages\django\utils\autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "C:\Environments\django_env\lib\site-packages\django\core\management\commands\runserver.py", line 109, in inner_run
    autoreload.raise_last_exception()
  File "C:\Environments\django_env\lib\site-packages\django\utils\autoreload.py", line 248, in raise_last_exception
    raise _exception[1]
  File "C:\Environments\django_env\lib\site-packages\django\core\management\__init__.py", line 337, in execute
    autoreload.check_errors(django.setup)()
  File "C:\Environments\django_env\lib\site-packages\django\utils\autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "C:\Environments\django_env\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Environments\django_env\lib\site-packages\django\apps\registry.py", line 112, in populate
    app_config.import_models()
  File "C:\Environments\django_env\lib\site-packages\django\apps\config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "C:\Environments\django_env\lib\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 "C:\Environments\django_env\lib\site-packages\django\contrib\auth\models.py", line 2, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "C:\Environments\django_env\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module>
    class AbstractBaseUser(models.Model):
  File "C:\Environments\django_env\lib\site-packages\django\db\models\base.py", line 101, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "C:\Environments\django_env\lib\site-packages\django\db\models\base.py", line 304, in add_to_class
    value.contribute_to_class(cls, name)
  File "C:\Environments\django_env\lib\site-packages\django\db\models\options.py", line 203, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "C:\Environments\django_env\lib\site-packages\django\db\__init__.py", line 33, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "C:\Environments\django_env\lib\site-packages\django\db\utils.py", line 202, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "C:\Environments\django_env\lib\site-packages\django\db\utils.py", line 110, in load_backend
    return import_module('%s.base' % backend_name)
  File "C:\Environments\django_env\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "C:\Environments\django_env\lib\site-packages\django\db\backends\sqlite3\base.py", line 10, in <module>
    from sqlite3 import dbapi2 as Database
  File "c:\users\aguec\anaconda3\Lib\sqlite3\__init__.py", line 23, in <module>
    from sqlite3.dbapi2 import *
  File "c:\users\aguec\anaconda3\Lib\sqlite3\dbapi2.py", line 27, in <module>
    from _sqlite3 import *
ImportError: DLL load failed: The specified module could not be found.

我已经花了很多时间在网上搜索问题，但找不到解决问题的方法。我已经打开 python 来检查是否安装了 sqlite3。我曾尝试在虚拟环境中使用 pip install sqlite3 但这不起作用。

我以为当你创建一个虚拟环境时，Python 已经包含了 sqlite3 和 _sqlite3 库？

请任何帮助将不胜感激。

标签： djangopython-3.xserver

解决方案

您安装了多个版本的 python - virtualenv 和 anaconda 导致冲突。您必须在运行之前激活环境，或者直接使用基于 anaconda 的环境，因为它安装了 sqlite。如果您打算使用 pip install 在您自己的 virtualenv 中安装 sqlite 包。

虽然与您的包裹无关，但下面的链接将有助于解决问题

https://github.com/pytorch/pytorch/issues/9263

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