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Metadata Catalogue

pycsw enables users to publish a catalogue of dataset descriptions (metadata) to the web, using standards based interfaces and formats, such that it can be queried and updated by catalogue clients. pycsw is simple to setup within an Apache web server and can access metadata records stored as XML files within a database.

Metadata is ‘data about data’, storing such things as creation-date, author, title, area-of-interest, etc, and is usually encoded as XML files, following international standards such as ISO 19115, ISO 19139 and FGDC CSDGM.

pycsw is a Python implementation of the OGC Catalogue Services for the Web (CSW) standard. The project is certified OGC Compliant, and is an OGC Reference Implementation. The CSW standard defines common interfaces to discover, browse and query metadata about spatial data, web services and related resources.

pycsw is Open Source, released under an MIT license, and runs on all major platforms (Windows, Linux, Mac OS X).

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Core Features

  • fully compliant OGC CSW 2.0.2
  • fully passes the OGC CITE CSW test suite (103/103)
  • implements INSPIRE Discovery Services 3.0
  • implements ISO Metadata Application Profile 1.0.0
  • implements FGDC CSDGM Application Profile for CSW 2.0
  • implements the Search/Retrieval via URL (SRU) search protocol
  • implements OpenSearch
  • supports ISO, Dublin Core, DIF, FGDC and Atom metadata models
  • CGI or WSGI deployment
  • simple configuration
  • transactional capabilities (CSW-T)
  • flexible repository configuration
  • GeoNode connectivity
  • Open Data Catalog connectivity
  • federated catalogue distributed searching
  • realtime XML Schema validation
  • extensible profile plugin architecture
  • very lightweight (Python + CGI)

Implemented Standards

OGC Standards:

  • CSW 2.0.2
  • Filter 1.1.0
  • OWS Common 1.0.0
  • GML 3.1.1
  • OGC SFSQL 1.2.1

Metadata Standards:

  • Dublin Core 1.1
  • SOAP 1.2
  • ISO 19115 2003
  • ISO 19139 2007
  • ISO 19119 2005
  • NASA DIF 9.7
  • FGDC CSDGM 1998
  • SRU 1.1
  • A9 OpenSearch 1.1



Licence: MIT

Software Version: 1.4.0

Supported Platforms: Windows, Linux, Mac

API Interfaces: Python


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