Pycharm Run 窗口显示
Error loading MySQLdb module

"C:\Program Files\JetBrains\PyCharm 2019.1.3\bin\runnerw64.exe" D:\workspace\python\Envs\djangoEnv\Scripts\python.exe C:/Users/Administrator/PycharmProjects/Desin/manage.py runserver 8000
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\db\backends\mysql\base.py", line 15, in <module>
    import MySQLdb as Database
ModuleNotFoundError: No module named 'MySQLdb'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "c:\users\administrator\appdata\local\programs\python\python36\Lib\threading.py", line 916, in _bootstrap_inner
    self.run()
  File "c:\users\administrator\appdata\local\programs\python\python36\Lib\threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\core\management\commands\runserver.py", line 109, in inner_run
    autoreload.raise_last_exception()
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\utils\autoreload.py", line 77, in raise_last_exception
    raise _exception[1]
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\core\management\__init__.py", line 337, in execute
    autoreload.check_errors(django.setup)()
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\utils\autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\apps\registry.py", line 114, in populate
    app_config.import_models()
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\apps\config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "D:\workspace\python\Envs\djangoEnv\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\contrib\auth\models.py", line 2, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module>
    class AbstractBaseUser(models.Model):
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\db\models\base.py", line 117, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\db\models\base.py", line 321, in add_to_class
    value.contribute_to_class(cls, name)
  File "D:\workspace\python\Envs\djangoEnv\lib\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 "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\db\__init__.py", line 28, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\db\utils.py", line 201, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\db\utils.py", line 110, in load_backend
    return import_module('%s.base' % backend_name)
  File "D:\workspace\python\Envs\djangoEnv\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "D:\workspace\python\Envs\djangoEnv\lib\site-packages\django\db\backends\mysql\base.py", line 20, in <module>
    ) from err
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module.
Did you install mysqlclient?

但是pip list 显示是已经安装的，也可以runserver

请教问题可能出现在哪里？