...Here, we can see that, while the number of fucks never even gets to 1% of the results, in the highest one, PHP, 0.5% of all the packages found by Google code contain the word fuck, or any of its derivatives, such as fucker, etc. Furthermore, after PHP, which is the language with most occurences of fuck, almost doubling the other two which compete for the second place, those being C and Perl, something not unexpected. The lowest ones, which is no surprise, are C# and Python, Python probably being the cleanest programming language of the ones sorted here....It can be clearly seen that LGPL makes people swear, while GPL and BSD still do, but in a reduced manner.