prevent possible unicode error in window method

resources/lib/utils.py

@@ -43,10 +43,16 @@ def window(property, value=None, clear=False, windowid=10000):
     # Get or set window property
     WINDOW = xbmcgui.Window(windowid)
     
+    #setproperty accepts both string and unicode but utf-8 strings are adviced by kodi devs because some unicode can give issues
+    if isinstance(property, unicode):
+        property = property.encode("utf-8")
+    if isinstance(value, unicode):
+        value = value.encode("utf-8")
+    
     if clear:
         WINDOW.clearProperty(property)
-    elif value is not None: #setproperty accepts both string and unicode but utf-8 string seems best practice to pass
-        WINDOW.setProperty(property.encode("utf-8"), value.encode("utf-8"))
+    elif value is not None:
+        WINDOW.setProperty(property, value)
     else: #getproperty returns string so convert to unicode
         return WINDOW.getProperty(property).decode("utf-8")