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Sifts – Simple Full Text Search

Sifts is a simple Python full text search engine library with an SQLite or PostgreSQL backend.

It is meant to be used with Python libraries that need full-text search support, but where deploying something like ElasticSearch is overkill.

It supports both SQLite FTS5 and PostgreSQL FTS as backends.

Installation

pip install sifts

Usage

import sifts

# by default, creates a new SQLite database in the working directory
collection = sifts.Collection(name="my_collection")

# Add docs to the index. Can also update and delete.
collection.add(
    documents=["Lorem ipsum dolor", "sit amet"],
    metadatas=[{"foo": "bar"}, {"foo": "baz"}], # otpional, can filter on these
    ids=["doc1", "doc2"], # unique for each doc. Uses UUIDs if omitted
)

results = collection.query(
    "Lorem",
    # limit=2,  # optionally limit the number of results
    # where={"foo": "bar"},  # optional filter
    # order_by="foo",  # sort by metadata key (rather than rank)
)

The API is inspired by chroma.

Search Syntax

Sifts supports the following search syntax:

  • Search for individual words
  • Search for multiple words (will match documents where all words are present)
  • and operator
  • or operator
  • * wildcard (in SQLite, supported anywhere in the search term, in PostgreSQL only at the end of the search term)

The search syntax is the same regardless of backend.

Metadata

Release files for sifts 0.6.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for sifts 0.6.0
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Table of built distributions (wheels) for sifts 0.6.0
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sifts-0.6.0-py3-none-any.whl Python 3 none any Details

Total release size: 20.5 kB

Release files / sifts-0.6.0.tar.gz

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