Thank you for testing the file! 
Using this weather file:
“https://www.energyplus.net/weather-download/north_and_central_america_wmo_region_4/USA/PA/USA_PA_Philadelphia.Intl.AP.724080_TMY3/all”
Tried a different weather file and it still does not work. When I opened the file it looked ok, but when i rerunned the script i got the error message.
Used the same script on a different computer and it worked. I might have some issues due to some other plugins?