title: VSCode Jupyter not connecting to python kernel
body: <p>Launching a cell will make this message appear: <code>Connecting to kernel: Python 3.9.6 64-bit: Activating Python Environment 'Python 3.9.6 64-bit'</code>. This message will then stay up loading indefinitely, without anything happening. No actual error message.</p>
  <p>I've already tried searching for this problem, but every other post seem to obtain at least an error message, which isn't the case here. I still looked at some of these, which seemed to indicate the problem might have come from the <code>traitlets</code> package. I tried to downgrade it to what was recommended, but it didn't solve anything, so I reverted the downgrade.</p>
  <p>The main problem here is that I have no idea what could cause such a problem, without even an error message. If you think additional info could help, please do ask, I have no idea what could be of use right now.</p>