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Lightweight python library for Solr indexing, searching and schema management with optional Django integration.

Project description

parasolr is a lightweight python library for Apache Solr indexing, searching and schema management with optional Django integration. It includes a Solr client (parasolr.solr.SolrClient). When used with Django, it provides management commands for updating your Solr schema configuration and indexing content.

  • PyPI version PyPI - Python Version PyPI - Django Version PyPI - License
  • Build status Code coverage Documentation Status CodeFactor Maintainability Requirements Status code style: Black

Tested against Python 3.9-3.11, Solr 8.6 and 9.2, and Django 3.2-4.0 and without Django.


Install released version from pypi:

pip install parasolr

To install an unreleased version from GitHub:

pip install git+

To use with Django:

  • Add parasolr to INSTALLED_APPS

  • Configure SOLR_CONNECTIONS in your django settings:

        'default': {
        'URL': 'http://localhost:8983/solr/',
        'COLLECTION': 'name',
        # Any configSet in SOLR_ROOT/server/solr/configsets.
        #   The default configset name is "_default" as of Solr 7.
        #   For Solr 6, "basic_configs" is the default.
        'CONFIGSET': '_default'
  • Define a SolrSchema with fields and field types for your project.

  • Run solr_schema manage command to configure your schema; it will prompt to create the Solr core if it does not exist.

Development instructions

This git repository uses git flow branching conventions.

Initial setup and installation:

  • Recommmended: create and activate a Python 3.6 virtualenv:

    python3 -m venv parasolr
    source parasolr/bin/activate
  • Install the package with its dependencies as well as development dependencies:

    pip install -e .
    pip install -e '.[dev]'

Install pre-commit hooks

Install configured pre-commit hooks (currently black and isort):

pre-commit install

Styling was instituted in version 0.8; as a result, git blame may not reflect the true author of a given line. In order to see a more accurate git blame execute the following command:

git blame <FILE> –ignore-revs-file .git-blame-ignore-revs

Or configure your git to always ignore the black revision commit:

git config blame.ignoreRevsFile .git-blame-ignore-revs

Unit testing

Unit tests are written with pytest but use some Django test classes for compatibility with Django test suites. Running the tests requires a minimal settings file for Django-required configurations.

  • Copy sample test settings and add a secret key:

    cp ci/
    python -c "import uuid; print('\nSECRET_KEY = \'%s\'' % uuid.uuid4())" >>
  • By default, parasolr expects Solr 8. If running tests with an earlier version of Solr, either explicitly change MAJOR_SOLR_VERSION in your local or set the environment variable:

    export SOLR_VERSION=x.x.x
  • To run the test, either use the configured test command:

    python test
  • Or install test requirements in and use pytest directly:

    pip install -e '.[test]'


parasolr is distributed under the Apache 2.0 License.

©2019 Trustees of Princeton University. Permission granted via Princeton Docket #20-3619 for distribution online under a standard Open Source license. Ownership rights transferred to Rebecca Koeser provided software is distributed online via open source.

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