It seems that the VS Code python extension is injecting oh-my-posh variables in the shell; why on earth, I don't know. But critically they are wrong, since it is a bash shell not pwsh.

Agent tried to make a script to make a venv and install dependencies, and somehow renamed by computer username with 'venv' in front of it. "(venv) venvcjp*****@Mac" VS Code version: Code 1.99.3 ...