Reading your initial question again, are you concerned about the [argparse] warning?
I also am not an avid user of google colab (or notebooks in general), but you could try starting over and running pip install argparse==1.4.0
in it’s own cell, and if you get that warning again, do your runtime restart and then pip install anvil-uplink after it.
When pip finds the version of argparse it is looking for has already been installed it should just skip it and continue.