Compression

Overview

In this guide, you can learn how to use compression algorithms with PyMongo.

You can use compression to reduce the size of messages sent between your application and a MongoDB deployment. PyMongo supports the following compression algorithms:

• Snappy: You can use Snappy compression with MongoDB 3.4 and later by including the python-snappy package in your application.

• Zlib: You can use Zlib compression with MongoDB 3.6 and later

  by including the zlib package in your application.

• Zstandard: You can use Zstandard compression with MongoDB 4.2 and later by including the zstandard package in your application.

Specifying Compression By Using a Connection String

You can specify the compression algorithm to use by including the compressors option in your connection string. The following example specifies the Snappy compression algorithm

client = pymongo.MongoClient("mongodb://localhost/?compressors=snappy")

You can also specify multiple compression algorithms by separating them with a comma, as show in the following example:

client = pymongo.MongoClient("mongodb://localhost/?compressors=snappy,zlib,zstd")

Specifying Compression to a MongoClient

You can also specify the compression algorithm to use by passing the algorithms to use to the compressors parameter of the MongoClient constructor, as shown in the following example:

client = pymongo.MongoClient(compressors="snappy")

You can also specify multiple compression algorithms by passing a list of algorithms to the MongoClient constructor, as shown in the following example:

client = pymongo.MongoClient(compressors=["snappy", "zlib", "zstd"])

API Documentation

To learn more about any of the methods or types discussed in this guide, see the following API documentation:

• MongoClient