I've set up a virtual environment for my project, and installed a few additional packages. These installed ok, and I can see them in the file listing of my virtual environment. However, when I open a python console and try to import any of these new packages, I get an error message that they are not found. I'm assuming that the python console is not running in my virtual environment. How do I tell it to use the correct environment? It's straightforward in the bash console, but not clear how to do it in the python one.