nvda

cb78abf4 - sconstruct: expose a PYTHONPATH environment variable set to our python directory in miscDeps. No longer import sourceEnv in setup.py.

sconstruct: expose a PYTHONPATH environment variable set to our python directory in miscDeps. No longer import sourceEnv in setup.py. Although setup.py was able to locate all our python modules that should be included in a binary, Py2exe was unable to byte compile these as it could not locate py2exe within spawned copies of Python.