Is there a way to upgrade the version of Python used in a virtual environment (e.g., if a bugfix release comes out)? I could pip freeze --local > requirements.txt, remove the directory, and pip install -r requirements.txt, but this requires a lot of reinstallation of large libraries, for instance, NumPy, which I use a lot. I can see this is an advantage when upgrading from, e.g., 2.6 -> 2.7, but what about 2.7.x -> 2.7.y? Continue reading...
