Pay attention to the last paragraph discussing "snapshots". Switching between modes of execution is tricky. See also how this is done in PyPy: http://morepypy.

Pay attention to the last paragraph discussing "snapshots". Switching between modes of execution is tricky. See also how this is done in PyPy: http://morepypy.blogspot.com/2010/06/blackhole-interpreter.html http://morepypy.blogspot.com/2010/06/blackhole-interpreter.h...