[17:49:31] <tdsmith> if i run `some_virtualenv/bin/pip install .`, I should be surprised if it's refusing to install the package in the current directory because that package is installed to a system site-packages, right?
[17:49:52] <tdsmith> assuming some_virtualenv was not created with --system-site-packages
[17:49:59] <tdsmith> log of same here: https://github.com/Homebrew/brew/issues/603#issuecomment-236337080