安装好了mysqlclient，还是现实这个没办法用，是怎么回事？

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(django1.11) MacBook:test_django zo$ python manage.py check

Traceback (most recent call last):

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 26, in <module>

    import MySQLdb as Database

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/MySQLdb/__init__.py", line 18, in <module>

    from . import _mysql

ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so, 2): Library not loaded: @rpath/libmysqlclient.21.dylib

  Referenced from: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so

  Reason: image not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "manage.py", line 22, in <module>

    execute_from_command_line(sys.argv)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line

    utility.execute()

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/__init__.py", line 338, in execute

    django.setup()

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/__init__.py", line 27, in setup

    apps.populate(settings.INSTALLED_APPS)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/apps/registry.py", line 108, in populate

    app_config.import_models()

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/apps/config.py", line 202, in import_models

    self.models_module = import_module(models_module_name)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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 "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/contrib/auth/models.py", line 4, in <module>

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

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/contrib/auth/base_user.py", line 52, in <module>

    class AbstractBaseUser(models.Model):

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/base.py", line 124, in __new__

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

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/base.py", line 325, in add_to_class

    value.contribute_to_class(cls, name)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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 "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/__init__.py", line 33, in __getattr__

    return getattr(connections[DEFAULT_DB_ALIAS], item)

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/utils.py", line 211, in __getitem__

    backend = load_backend(db['ENGINE'])

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/utils.py", line 115, in load_backend

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

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module

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

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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: dlopen(/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so, 2): Library not loaded: @rpath/libmysqlclient.21.dylib

  Referenced from: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/MySQLdb/_mysql.cpython-37m-darwin.so

  Reason: image not found.

Did you install mysqlclient or MySQL-python?

(django1.11) MacBook:test_django zo$