title: Debugging robot framework python keyword libraries
body: <p>For learning purposes I want to follow the execution path  in a robot framework python library.
  Actually the <a href="http://robotframework.org/SSHLibrary/latest/SSHLibrary.html#Connections%20and%20login">ssh library</a></p>
  
  <p>What is the best way to do this?</p>
  
  <p>I have looked at <a href="https://github.com/xyb/robotframework-debuglibrary/blob/master/DebugLibrary.py">debug lib</a>   , which  seems to provide me with  the ability to set a breakpoint and spawn a new shell. However I want to examine  the execution flow, the stack and the variable values set. Something like pudb but triggered via pybot. Is this possible?</p>