mysql - 模块未找到错误 : No module named 'MySQLdb' with django 1. 10.5

Question

我在调用python manage.py migrate时遇到此错误 第一次。我在 window 里。安装mysql，创建数据库，并输入数据库名称。 django版本是1.10.5，我使用的python版本是python 3.7，但是python 2.7也是在系统中。 一些解决方案说 Visual Studio 开发者工具可能会解决该问题，我安装了 Visual Stdio 2017 开发者工具，但问题仍然存在。

ModuleNotFoundError: No module named 'MySQLdb'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\core\management\__init__.py", line 367, in execute_
from_command_line
    utility.execute()
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\core\management\__init__.py", line 341, in execute
    django.setup()
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\__init__.py", line 27, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\apps\registry.py", line 108, in populate
    app_config.import_models(all_models)
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\apps\config.py", line 199, in import_models
    self.models_module = import_module(models_module_name)
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\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 "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\contrib\auth\models.py", line 4, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\contrib\auth\base_user.py", line 52, in <module>
    class AbstractBaseUser(models.Model):
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\db\models\base.py", line 119, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\db\models\base.py", line 316, in add_to_class
    value.contribute_to_class(cls, name)
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\db\models\options.py", line 214, in contribute_to_c
lass
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\db\__init__.py", line 33, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\db\utils.py", line 211, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\db\utils.py", line 115, in load_backend
    return import_module('%s.base' % backend_name)
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "I:\python projects\Virtual_Environments\todo_project_venv\todo_venv\lib\site-packages\django\db\backends\mysql\base.py", line 28, in <module>
    raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named 'MySQLdb'

Answer 1

我发现，我必须安装特定版本的 mysqlclient 才能解决这些错误。

我必须卸载 python 3.7(我观察到可能存在一些问题)。

然后安装python 3.6.5。

然后安装mysqlclient 1.3.12

这两者并不冲突，项目运行顺利。