Matt-Heun Hong

Oh, I see this has been addressed here: https://github.com/david-abel/simple_rl/pull/54 Weird... I installed version 0.811, which should have the above merges

I've determined that `pip install simple-rl` using Python 3.8 does not actually have the latest code. The files in the tarbell link also throws this error on Python 3.

I'm quite confused right now. Issue #471 was closed because it was deemed a duplicate of this issue (which is specific to postgresql ENUMs). But downgrade scripts aren't being generated...

@jasongrout I resolved the issue as follows: Firstly, the `environment.yml` specifies jlab version 2 for installation. For some reason, the error I specified above shows up when installing extensions with...

Realized the above was ambitious - ipyleaflet throws errors on jlab 3 still (I saw on Gitter it was released for jlab 3 just last week?) Your solution for jlab...

Sounds good

Never mind Martin, I didn't realize requirements.txt for the tutorial had specified `ipyleaflet==0.12.6`, so my environment still had the old version. ipyleaflet==0.13.6 is working fine with the tutorial on jlab...