django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named 'MySQLdb'. Did you install mysqlclient or MySQL-python?

时间：2021-10-05 02:00:07

Error msg:

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x0000013E139A1488>

Traceback (most recent call last):

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\db\backends\mysql\base.py", line 26, in <module>

    import MySQLdb as Database

ModuleNotFoundError: No module named 'MySQLdb'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\utils\autoreload.py", line 228, in wrapper

    fn(*args, **kwargs)

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\core\management\commands\runserver.py", line 116, in inner_run

    autoreload.raise_last_exception()

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\utils\autoreload.py", line 251, in raise_last_exception

    six.reraise(*_exception)

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\utils\six.py", line 685, in reraise

    raise value.with_traceback(tb)

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\utils\autoreload.py", line 228, in wrapper

    fn(*args, **kwargs)

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\__init__.py", line 27, in setup

    apps.populate(settings.INSTALLED_APPS)

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\apps\registry.py", line 108, in populate

    app_config.import_models()

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\apps\config.py", line 202, in import_models

    self.models_module = import_module(models_module_name)

  File "C:\Users\w5659\Envs\py3\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 "C:\Users\w5659\Envs\py3\lib\site-packages\django\contrib\auth\models.py", line 4, in <module>

    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\contrib\auth\base_user.py", line 52, in <module>

    class AbstractBaseUser(models.Model):

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\db\models\base.py", line 124, in __new__

    new_class.add_to_class('_meta', Options(meta, app_label))

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\db\models\base.py", line 325, in add_to_class

    value.contribute_to_class(cls, name)

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\db\models\options.py", line 214, in contribute_to_class

    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\db\__init__.py", line 33, in __getattr__

    return getattr(connections[DEFAULT_DB_ALIAS], item)

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\db\utils.py", line 211, in __getitem__

    backend = load_backend(db['ENGINE'])

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\db\utils.py", line 115, in load_backend

    return import_module('%s.base' % backend_name)

  File "C:\Users\w5659\Envs\py3\lib\importlib\__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "C:\Users\w5659\Envs\py3\lib\site-packages\django\db\backends\mysql\base.py", line 30, in <module>

    'Did you install mysqlclient or MySQL-python?' % e

django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named 'MySQLdb'.

Did you install mysqlclient or MySQL-python?

问题:

　　版本兼容性问题

解决:

　　方法一:  安装pymysql, 在setting.py的同级目录__init__.py中添加:

　　　　import pymysql

　　　　pymsql.install_as_MySQLdb()

　　方法二: 安装mysqlclient, 但是不能直接安装, 只能使用:

　　　　pip install https://download.lfd.uci.edu/pythonlibs/h2ufg7oq/mysqlclient-1.3.13-cp36-cp36m-win_amd64.whl

　　　　如果为32位系统python2.7请修改为: mysqlclient-1.3.13-cp27-cp27m-win_amd32.whl即可, 其他同理

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