Thanks, reading over that code was useful. In particular I realized that my Oil project (a bash-compatible shell [1]) doesn't support PROMPT_COMMAND, which ton

Thanks, reading over that code was useful. In particular I realized that my Oil project (a bash-compatible shell [1]) doesn't support PROMPT_COMMAND, which tons of people appear to be using. https://github.com/oilshell/oil/issues/320 https://github.com/oilshell/oil/issues/320 It seems like a weird hack but apparently it works for tons of things! [1] Latest status: Success With the Interactive Shell http://www.oilshell.org/blog/2019/02/05.html http://www.oilshell.org/blog/2019/02/05.html . Oil runs a bunch of interactive programs like bash-completion, virtualenv, and git-prompt.