pycsw is an OGC CSW server implementation written in Python.
pycsw fully implements the OpenGIS Catalogue Service Implementation Specification [Catalogue Service for the Web]. Initial development started in 2010 (more formally announced in 2011). The project is certified OGC Compliant, and is an OGC Reference Implementation. Since 2015, pycsw is an official OSGeo Project.
pycsw allows for the publishing and discovery of geospatial metadata via numerous APIs (CSW 2/CSW 3, OpenSearch, OAI-PMH, SRU). Existing repositories of geospatial metadata can also be exposed, providing a standards-based metadata and catalogue component of spatial data infrastructures.
pycsw is used in government, academia and industry, and powers the Geoplatform.gov and Data.gov CSW services. Data.gov is the home of the U.S. Government’s open data. pycsw can be deployed both as a standalone and embedded component in geospatial data portal applications such as CKAN, GeoNode, and Open Data Catalog.
2010: initial development started
2011
June: 1.0.0 released, providing support for OGC Core CSW, ISO Application Profile, and INSPIRE Discovery Services
2012
April: 1.2.0 released, adding OpenSearch, SRU, WMS harvesting, GeoNode connectivity, JSON output, and MySQL backend support
September: 1.4.0 released, adding WSGI and Open Data Catalogue connectivity
November: featured in OSGeo journal
2013
January
pycsw becomes certified OGC Compliant
pycsw becomes an OGC reference implementation
April
pycsw enters OSGeo Incubation
June
pycsw workshop provided by Gateway Geomatics for the Oregon Coastal Management Program (~ 40 participants)
1.6.0 released, providing support for native PostGIS geometry support, spatial relevance ranking, WAF/RDF Dublin Core harvesting, ISO 19115-2, flexible administration
August
pycsw integrated into CKAN
September
new website launched, including blog, mobile support, bootstrap UI
FOSS4G2013: pycsw part of 5 presentations, including http://2013.foss4g.org/conf/programme/presentations/133/, as well as Maps and Metadata BOF
2014
March
1.8.0 released, providing support for PostgreSQL Full Text Search, repository filtering, database connection pooling <http://pycsw.org/2014/03/20/pycsw-180-released.html>
1.8.0 deployed by Data.gov and Geoplatform.gov as CSW API
April
Project Steering Committee (PSC) formed
September
1.10.0 released at FOSS4G PDX, providing support for OGC OpenSearch Geo/Time, OAI-PMH <http://pycsw.org/2014/09/13/pycsw-1100-released.html>
2015
March
pycsw graduates OSGeo incubation and is approved as an official OSGeo project
2016
July
2.0.0 "Doug" released, providing support for CSW 3.0.0 and Python 3 support
