Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
The error message you are having "IDDAlreadySetError: IDD file is set to: ../eppy/resources/iddfiles/Energy+V7_2_0.idd" means that the iddfile has already been set to Energy+V7_2_0.idd. If you restart python again, then import eppy and try set iddfile to new directory C:\EnergyPlusV8-1-0\Energy+.idd. I personally did not try using v8.1 of .idd file. I am not sure whether it works or not. Coz in resource file, it only contains up to date version of v8.0 if I remember correct.
