[This is a clone of this post just for avoid it may be lost. All attribution is to its author (Mike)]
I’ve seen the python pty trick in a few places, first when taking OSCP labs. However, if you’ve noticed there’s still some problems. 2 years ago at HackFest @r00k did a presentation where he improved the quality of the shell dramatically. Last year at HackFest, @jeffmcjunkin posted further improvements. All credit goes to them, and the excerpt below comes directly from Jeff McJunkin’s SEC560 notes.