Interesting observation. I am just starting to dip my toe into this area and, in fact, "Programming the Semantic Web" is sitting (currently untouched) on my desk.

While I cannot comment on the Perl vs. Python question, I have been poking around CPAN and I found several modules related to the semantic web. I hope others can add to this list.

• Modules related to RDF: http://search.cpan.org/search?m=all&q=rdf
• DBD::RDFStore
• RDF::Query
• Apache::SPARQL
• ODO (Ontologies, Databases, and Optimization)
• Modules related to structured (meta)data
• Data::DublinCore
• XML::FOAF
• MediaWiki::API (Will this support semantic queries for Semantic MediaWiki?)

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