Add _read_python() function for PRB and PRM files.
Add _read_python() function for PRB and PRM files.

nsteinme/phy,nsteinme/phy,rossant/phy,nippoo/phy,rossant/phy,nippoo/phy,kwikteam/phy,kwikteam/phy,kwikteam/phy,rossant/phy