django.core.exceptions.ImproperlyConfigured: Requested setting CACHES, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings

django.core.exceptions.ImproperlyConfigured: Requested setting CACHES, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

django.core.exceptions.配置不正确：已请求的设置缓存，但未配置设置。必须定义环境变量DJANGO_SETTINGS_MODULE或调用设置。访问设置之前配置()。

原因：已经安装了django-redis，并在dev.py配置文件中配置了CACHES信息，但在坐测试的时候，没有把Django的配置文件加载进来

from django.core.cache import cache

cache.set('Django_test', 'success')

settings.py:

CACHES = {
    "default": {
        "BACKEND": "django_redis.cache.RedisCache",
        "LOCATION": "redis://127.0.0.1:6379/2",
        "OPTIONS": {
            "CLIENT_CLASS": "django_redis.client.DefaultClient",
            "CONNECTION_POOL_KWARGS": {"max_connections": 100}
            # "PASSWORD": "123",
        }
    }
}

解决： 做测试环境，加载DJANGO_SETTINGS_MODULE

import os

if __name__ == '__main__':
    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'luffy_api1.settings.dev')
    import django
    django.setup()

    from django.core.cache import cache

    cache.set('Django_test', 'success')