DjangoデータベースをMySQLに設定した場合、エラー:django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.3 or newer is re

エラーメッセージ

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x110f60b70>
Traceback (most recent call last):
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 112, in inner_run
    autoreload.raise_last_exception()
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/utils/autoreload.py", line 248, in raise_last_exception
    raise _exception[1]
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/core/management/__init__.py", line 327, in execute
    autoreload.check_errors(django.setup)()
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/apps/registry.py", line 112, in populate
    app_config.import_models()
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/apps/config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "", line 978, in _gcd_import
  File "", line 961, in _find_and_load
  File "", line 950, in _find_and_load_unlocked
  File "", line 655, in _load_unlocked
  File "", line 678, in exec_module
  File "", line 205, in _call_with_frames_removed
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/contrib/auth/models.py", line 2, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/contrib/auth/base_user.py", line 47, in <module>
    class AbstractBaseUser(models.Model):
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/db/models/base.py", line 114, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/db/models/base.py", line 315, in add_to_class
    value.contribute_to_class(cls, name)
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/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 "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/db/__init__.py", line 33, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/db/utils.py", line 202, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/db/utils.py", line 110, in load_backend
    return import_module('%s.base' % backend_name)
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/Users/tangbincheng/.pyenv/versions/3.6.0/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 36, in <module>
    raise ImproperlyConfigured("mysqlclient 1.3.3 or newer is required; you have %s" % Database.__version__)
django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.3 or newer is required; you have 1.2.5

理由「Djangoはmysqlclientより高いバージョンが必要で、マシンが持っているバージョンが

より低い.

解決方法:mysqlclient

をアップグレード

▶ sudo -H pip3 install -U mysqlclient
Password:
Collecting mysqlclient
  Downloading mysqlclient-2.0.1.tar.gz (87 kB)
     |████████████████████████████████| 87 kB 35 kB/s
Using legacy 'setup.py install' for mysqlclient, since package 'wheel' is not installed.
Installing collected packages: mysqlclient
    Running setup.py install for mysqlclient ... done
Successfully installed mysqlclient-2.0.1