I’m using: Python 3.4.2 PyMongo 3.0.2 mongolab running mongod 2.6.9 uWSGI 2.0.10 CherryPy 3.7.0 nginx 1.6.2 uWSGI start params: I setup my MongoClient ONE time: I try and save a JSON dict to MongoDB: It works via a unit test that executes the same code path to mongodb. However when I execute via CherryPy and uWSGI using an HTTP POST,