解决：mysqlclient 1.4.3 or newer is required； you have 1.0.3.

花了两天的时间卡在这个地方真的是欲哭无泪啊！

小白一个，做django专题，跟着影片学学学，结果在

python3 manage.py makemigrations

卡到一个不行……..

它总是会出现以下的报错：

PS C:\Users\User\PycharmProjects\mysite> python3 manage.py makemigrations
Traceback (most recent call last):
  File "C:\Users\User\PycharmProjects\mysite\manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\core\management\__init__.py", line 442, in execute_from_command_line   
    utility.execute()
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\core\management\__init__.py", line 416, in execute
    django.setup()
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\apps\registry.py", line 116, in populate
    app_config.import_models()
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\apps\config.py", line 269, in import_models
    self.models_module = import_module(models_module_name)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.1008.0_x64__qbz5n2kfra8p0\Lib\imp
ortlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1149, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\contrib\auth\models.py", line 3, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\contrib\auth\base_user.py", line 57, in <module>
    class AbstractBaseUser(models.Model):
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\db\models\base.py", line 143, in __new__
    new_class.add_to_class("_meta", Options(meta, app_label))
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\db\models\base.py", line 371, in add_to_class
    value.contribute_to_class(cls, name)
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\db\models\options.py", line 243, in contribute_to_class
    self.db_table, connection.ops.max_name_length()
                   ^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\utils\connection.py", line 15, in __getattr__
    return getattr(self._connections[self._alias], item)
                   ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\utils\connection.py", line 62, in __getitem__
    conn = self.create_connection(alias)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\db\utils.py", line 193, in create_connection
              ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\db\utils.py", line 113, in load_backend
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.1008.0_x64__qbz5n2kfra8p0\Lib\imp
ortlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local
-packages\Python311\site-packages\django\db\backends\mysql\base.py", line 35, in <module>
    raise ImproperlyConfigured(
django.core.exceptions.ImproperlyConfigured: mysqlclient 1.4.3 or newer is required; you have 1.0.3.

但是明明我的mysqlclient版本是2.1.1，settings.py的DATABASES也没打错，so why??

后来我发现，只需要在__init__.py中加上

import pymysql
pymysql.version_info =(2, 1, 1, "final", 0)
pymysql.install_as_MySQLdb()

就可以了!!!!!!!!!!!!!!!!!

注意这个第二行的2,1,1是根据 mysqlclient的版本噢!!!!!!!

实在是太激动了，但不知道我理解的有没有错，如果有错再麻烦指正！