Talsi is a SQLite-backed key-value storage library for Python, written in Rust (so you can tell it's obviously blazing fast).

It grew out of my repeated need for a key-value storage library for various projects over the years that have needed to store (temporary) data of some sort, and writing the same SQLite stuff over and over again was getting old. Also, it's a good excuse to write some Rust + PyO3 code.

• Namespaced key-value storage. Keys are UTF-8, values can be anything (either pickleable or JSONable).
• Fast, thanks to SQLite and Rust.
• API support for multi-set/multi-get/multi-delete operations
• Transparent compression for large data (Snappy or Zstd (since 0.4.0), configurable).
• Support for orjson; if it is installed in your Python environment, it will be used for fast JSON (de)serialization.

import talsi

# Create a storage with Snappy compression (default)
storage = talsi.Storage("mydb.db")
storage = talsi.Storage("mydb.db", compression="zstd")  # defaults to level 3
storage = talsi.Storage("mydb.db", compression="zstd:1")  # fastest
storage = talsi.Storage("mydb.db", compression="zstd:10")  # slower but better compression

# Set and get values
storage.set("namespace", "key", "value")
value = storage.get("namespace", "key")

For more examples, please see the tests in tests/.

• Licensed under the MIT license. See the LICENSE file for details.
• Builds embed SQLite, which is in the public domain