During the bonding period I looked into Python’s extension tools; they seem to be straightforward and at first glance look relatively easy, so Python is definitely an option. I asked on the mailing list what other languages people were using on Haiku, and Neil kindly made a poll based on the results. Depending on the popularity of the language (based on the poll results) and the ease of writing extensions, I will make a final decision on which langauges to target during GSoC.
This is a companion discussion topic for the original entry at https://www.haiku-os.org/blog/jalopeura/2011-05-25_language_bindings_c_api_first_quarter_goals/