ModuleNotFoundError: No module named 'MySQLdb'
执行命令 python manage.py makemigrations时抛出以下错误
Traceback (most recent call last): File "D:\Program Files\Python\Python37-32\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 "manage.py", line 21, in <module> main() File "manage.py", line 17, in main execute_from_command_line(sys.argv) File "D:\Program Files\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 371, in execute_from_command_line utility.execute() File "D:\Program Files\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 347, in execute django.setup() File "D:\Program Files\Python\Python37-32\lib\site-packages\django\__init__.py", line 24, in setup apps.populate(settings.INSTALLED_APPS) File "D:\Program Files\Python\Python37-32\lib\site-packages\django\apps\registry.py", line 112, in populate app_config.import_models() File "D:\Program Files\Python\Python37-32\lib\site-packages\django\apps\config.py", line 198, in import_models self.models_module = import_module(models_module_name) File "D:\Program Files\Python\Python37-32\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 "D:\Program Files\Python\Python37-32\lib\site-packages\django\contrib\auth\models.py", line 2, in <module> from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager File "D:\Program Files\Python\Python37-32\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module> class AbstractBaseUser(models.Model): File "D:\Program Files\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 114, in __new__ new_class.add_to_class('_meta', Options(meta, app_label)) File "D:\Program Files\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 315, in add_to_class value.contribute_to_class(cls, name) File "D:\Program Files\Python\Python37-32\lib\site-packages\django\db\models\options.py", line 205, in contribute_to_class self.db_table = truncate_name(self.db_table, connection.ops.max_name_length()) File "D:\Program Files\Python\Python37-32\lib\site-packages\django\db\__init__.py", line 33, in __getattr__ return getattr(connections[DEFAULT_DB_ALIAS], item) File "D:\Program Files\Python\Python37-32\lib\site-packages\django\db\utils.py", line 202, in __getitem__ backend = load_backend(db['ENGINE']) File "D:\Program Files\Python\Python37-32\lib\site-packages\django\db\utils.py", line 110, in load_backend return import_module('%s.base' % backend_name) File "D:\Program Files\Python\Python37-32\lib\importlib\__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "D:\Program Files\Python\Python37-32\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?
问题原因:MySQLdb只支持Python2.*,还不支持3.* ,但是在settings中配置的数据库为MySql,所以执行时会报错
DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'autotest', 'USER': 'root', 'PASSWORD': 'root', 'HOST': '127.0.0.1', 'PORT': '3306' } }
解决方法1:若想继续使用MySql数据库,则可用PyMySQL代替,安装命令为 pip install PyMySQL
在settings.py同级目录中的_init_.py文件中加入代码(只需更改此次,所创建的应用不需再设置,如果只在应用下的_init_.py文件中更改,则只适用该应用)
import pymysql pymysql.install_as_MySQLdb()
再次执行:
D:\autotestplat>python manage.py makemigrations
Migrations for 'product':
product\migrations\0001_initial.py
- Create model Product
Migrations for 'apitest':
apitest\migrations\0001_initial.py
- Create model Apis
- Create model Apistep
- Create model Apitest
- Add field Apitest to apistep
Migrations for 'bug':
bug\migrations\0001_initial.py
- Create model Bug
解决方法2:安装mysqlclient,可用命令pip install mysqlclient