Using PyMongo with MongoDB Atlas ================================ `Atlas `_ is MongoDB, Inc.'s hosted MongoDB as a service offering. To connect to Atlas, pass the connection string provided by Atlas to :class:`~pymongo.mongo_client.MongoClient`:: client = pymongo.MongoClient() Connections to Atlas require TLS/SSL. For connections using TLS/SSL, PyMongo may require third party dependencies as determined by your version of Python. With PyMongo 3.3+, you can install PyMongo 3.3+ and any TLS/SSL-related dependencies using the following pip command:: $ python -m pip install pymongo[tls] Earlier versions of PyMongo require you to manually install the dependencies. For a list of TLS/SSL-related dependencies, see :doc:`examples/tls`.