Hi, Buzzword bingo in the subject... Situation: I'm experimenting with docker, mostly in combination with buildout. But it also applies to pip/virtualenv. I build a docker container with a Dockerfile: install some .deb packages, add the current directory as /code/, run buildout (or pip), ready. Works fine. Now local development: it is normal to mount the current directory as /code/, so that now is overlayed over the originally-added-to-the-docker /code/. This means that anything done inside /code/ is effectively discarded in development. So a "bin/buildout" run has to be done again, because the bin/, parts/, eggs/ etc directories are gone. Same problem with a virtualenv. *Not* though when you run pip directly and let it install packages globally! Those are installed outside of /code in /usr/local/somewhere. A comment and a question: - Comment: "everybody" uses virtualenv, but be aware that it is apparently normal *not* to use virtualenv when building dockers. - Question: buildout, like virtualenv+pip, installs everything in the current directory. Would an option to install it globally instead make sense? I don't know if it is possible. Reinout -- Reinout van Rees http://reinout.vanrees.org/ reinout@vanrees.org http://www.nelen-schuurmans.nl/ "Learning history by destroying artifacts is a time-honored atrocity"