Bypass confirmation prompt for pip uninstall

starting with pip version 7.1.2 you can run pip uninstall -y <python package(s)>

pip uninstall -y package1 package2 package3

or from file

pip uninstall -y -r requirements.txt

Pip does NOT include a --yes option (as of pip version 1.3.1).

WORKAROUND: pipe yes to it!

$ sudo ls  # enter pw so not prompted again
$ /usr/bin/yes | sudo pip uninstall pymongo