message: DLL search path tweak
diff: import sys
  +import os
  if sys.version_info < (3, 5):
  raise ImportError("Enoki requires Python >= 3.5")
  -del sys
  +if os.name == 'nt':
  + # Specify DLL search path for windows (no rpath on this platform..)
  + d = __file__
  + for i in range(3):
  + d = os.path.dirname(d)
  + os.add_dll_directory(d)
  + del d, i
  +
  +del sys, os
  # Implementation details accessed by both C++ and Python
  import enoki.detail as detail # noqa
  