[$] Memory use in CPython and MicroPython

At PyCon 2017, Kavya Joshi lookedat some of the differences between the Python reference implementation(known as "CPython") andthat of MicroPython. In particular,she described the differences in memory use and handling between the two.Those differences are part of what allows MicroPython to run on the severely memory-constrainedmicrocontrollers it targets-an environment that could never support CPython.