Elasticsearch - - Open Source, Distributed, RESTful, Search Engine. Lucene - Apache Solr. Toastdriven/django-haystack. Whoosh 2.4.0. Fast, pure-Python full text indexing, search, and spell checking library.
Package Documentation Whoosh is a fast, featureful full-text indexing and searching library implemented in pure Python. Programmers can use it to easily add search functionality to their applications and websites. The Xapian Project.