This formula is required by Asciinema, Awscli, AzureCli, BandcampDl, Biogeme, Boost, BoostAT155, BoostPython, BoostPythonAT159, Buku, Certbot, Cmark, CmarkGfm, Commonmark, ConjureUp, Csvkit, Csvtomd, DcosCli, Ddgr, Diffoscope, Fades, FbClient, Fdroidserver, Gdal, Gdcm, Ghc, GitCola, Gitg, GnomeBuilder, GnomeRecipes, Gom, Googler, Grc, GstPython, Hashpump, Hexchat, Httpie, Ipython, IsoCodes, JujuWait, Keepassc, Khal, Khard, Lcm, Lensfun, Libvoikko, Macvim, Meson, Mitmproxy, Mpv, Mypy, Nghttp2, Notmuch, Numpy, Opencv, Pipenv, Ponysay, Postgresql, PostgresqlAT95, PostgresqlAT96, PreCommit, Protobuf, Py3cairo, Pybind11, Pygobject3, Pyqt, Pyqt5, Pyside, Pytouhou, Qscintilla2, Root, Rtv, Scipy, Shiboken, Shyaml, Simgrid, Sip, Snakemake, Snapcraft, Taisei, Thefuck, Todoman, Treeline, Twoping, Twtxt, Urh, Vapoursynth, Vdirsyncer, Vim, VimAT74, Vtk, Whatmp3, Xonsh, YouGet, Z3, Znc and