According to a recent study on the current usage of programming languages in astronomy -<a href="http:&#x2F;&#x2F;arxiv.org&#x2F;abs&#x2F;1507.03989" rel="nofollow">http:&#x2F;&#x2F;arxiv.org&#x2F;abs&#x2F;1507.03989</a> - Fortran, quite popular in the old days, is still used by a quarter of scientists in the field. Python has been growing very fast in the last five years, eating away at the IDL share of astronomers.