title: Step by step differentiation with sympy
body: <p>I'm trying to make a python proram to find derivatives and integrals as well as showing how. I have so far found that there is an integral_steps function which returns the steps used, but I have not found an equivalent for differentiation.</p>
  <p>Does anyone know if there is an equivalent?</p>
  <p>If there isn't, do you have any ideas on how to find the steps needed to find a derivative?</p>