While writing the answer for the stackoverflow question about cross-language standard libraries, I realized that there is not enough statistics about module/function usage in Python. If there could be an utility that just walks through your project and gathers stats about calls from stdlib, then this utility can as well submit those stats to some stats.python.org endpoint for summarizing. The stats about stdlib module usage/function calls can be combined into reversible hashes for easy posting through at URL form at the site. Hashes are also useful to see if some big subtree is actually popular library, such as Django, to avoid duplicating the stats. If every installed package is run through such tool, then it might be even possible to detect the versions of libraries used regardless of metadata location (although MD5 seems a better solution in this case). 1. http://stackoverflow.com/questions/7654826/cross-language-standard-libraries -- anatoly t.