How to make pip install in a local conda source and override symlinks when that source is active?

Part 1 (2017)
1

How to make pip install in a local conda source and override symlinks when that source is active?

I ask because I can’t get keras to work in jupyter notebook because (I think) it is using a system owned version even when launched from an active conda source, rather than the one in the conda virtual environment. (Ubuntu 16.04, I think it has some stuff installed via apt and other stuff via pip, and other stuff via conda+pip… )