Scylla Driver for Apache Cassandra
Project description
A modern, feature-rich and highly-tunable Python client library for Scylla Open Source (2.1+) and Apache Cassandra (2.1+) and Scylla Enterprise (2018.1.x+) using exclusively Cassandra’s binary protocol and Cassandra Query Language v3.
The driver supports Python versions 2.7, 3.4, 3.5, 3.6, 3.7 and 3.8.
Features
- Synchronous and Asynchronous APIs
- Simple, Prepared, and Batch statements
- Asynchronous IO, parallel execution, request pipelining
- Connection pooling
- Automatic node discovery
- Automatic reconnection
- Configurable load balancing and retry policies
- Concurrent execution utilities
- Object mapper
- Shard awareness
Installation
Installation through pip is recommended:
$ pip install scylla-driver
For more complete installation instructions, see the installation guide.
Training
The course Using Scylla Drivers in Scylla University explains how to use drivers in different languages to interact with a Scylla cluster. The lesson, Coding with Python (link), goes over a sample application that, using the Python driver, interacts with a three-node Scylla cluster. It connects to a Scylla cluster, displays the contents of a table, inserts and deletes data, and shows the contents of the table after each action. Scylla University includes other training material and online courses which will help you become a Scylla NoSQL database expert.
Object Mapper
cqlengine (originally developed by Blake Eggleston and Jon Haddad, with contributions from the community) is now maintained as an integral part of this package. Refer to documentation here.
Contributing
See CONTRIBUTING.md <https://github.com/scylladb/python-driver/blob/master/CONTRIBUTING.rst>`_.
Reporting Problems
Please report any bugs and make any feature requests by clicking the New Issue button in Github.
If you would like to contribute, please feel free to send a pull request.
Getting Help
Your best options for getting help with the driver are the mailing list and the Scylla Users Slack channel.
License
Copyright DataStax, Inc.
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
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