Platform.python_version() fails

I stumbled across this when trying to load an external library (ifcopenshell):
calling platform.python_version() fails, throwing an exception:

import platform
print platform.python_version()

results in

Message: failed to parse CPython sys.version: '2.7.0 ()'

  line 1382, in _sys_version, "C:\Program Files\Rhinoceros 5 (64-bit)\Plug-ins\IronPython\Lib\"
  line 1428, in python_version, "C:\Program Files\Rhinoceros 5 (64-bit)\Plug-ins\IronPython\Lib\"
  line 2, in <module>, "C:\Users\fsc\AppData\Local\Temp\"

I am on Rhino 5 SR12 64-bit (5.12.50810.13095, 10.08.2015)