The poetry module which is used to install packages in Python repls uses requests.
If you install and then remove a package which has requests as a dependency you will no longer be able to use the packages feature in that repl.
To recreate:
  • add the wikipedia package
  • remove the wikipedia package (which will remove reqeuest)
  • an attempt add a package will result in the error: ModuleNotFoundError: No module named 'requests'