No, it is not, and in my opinion it would also not be desirable to do so. Among the forbids in the robots.txt is the forbid to get edit pages; without that it would be impossible to run the bot.
And I have now found robotparser, which will handle non-Wiki needs, but it doesn't recognize situations for exceptions such as this. For bot edit situations the restrictions are not needed because a username/password (or site configuration) allows an implied override of bot restrictions.
I had more concern about standardize_notes.py fetching citation descriptions from other sites, but I'll add robotparser to it.