Osmium started out as a C++ program. There are now python (PyOsmium) and nodjs bindings.
He added a command line tool: osmium-tool. It works on osx, linux and windows. There are ubuntu/debian packages, too.
(He demonstrated it on the command line: that is not something I can summarize in text :-) It looked well-done and useful!)
My name is Reinout van Rees and I work a lot with Python (programming language) and Django (website framework). I live in The Netherlands and I'm happily married to Annie van Rees-Kooiman.
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