At the end of the post he says that only Python can parse Pickle. This is not really true. You can write a Pickle parsing library in any language (maybe some special use would not be possible).

For instance I have implemented enough of it[0] to use in a drop-in replacement for Graphite[1].

[0]: https://github.com/noteed/python-pickle [1]: http://graphite.wikidot.com/