配置admin时，产生'WSGIRequest' object has no attribute 'user'的错误
google了下，说是MIDDLEWARE配置的有问题，顺序应该保持参见（http://stackoverflow.com/questions/26576192/wsgirequest-object-has-no-attribute-user）：
'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
但是这样设置之后，依然没有解决。
我的MIDDLEWARE的配置是：
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware', 'django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', ]
实际上，这是Django版本的问题，1.9之前，中间件的key为MIDDLEWARE_CLASSES, 1.9之后，为MIDDLEWARE。所以在开发环境和其他环境的版本不一致时，要特别小心，会有坑。
改配置为：
MIDDLEWARE_CLASSES = [
'django.middleware.security.SecurityMiddleware', 'django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', ]
问题解决。
参考 http://www.ziqiangxuetang.com/django/django-middleware.html