- Create a new python project
- Create a new virtual env.
- On disk, delete the virtual env's Lib/no-global-site-packages.txt
- In solution explorer, you'll see that the list of packages for the virtual env now includes all global packages
- Try to import one of the global modules, IntelliSense won't include any of them in the suggested completions
Workaround: Close and reopen the solution and you'll get the completions.