Gathering windows from each room

[bvs1982]

Did you also had a look at this post? Don’t know if Doors can be replaced by Windows in that post.

Transfer parameter values from Rooms to Asociated Doors

Looks like you may have some indentation errors, but I can’t see as we lost formatting. Can you repost with the formatting by selecting your code and hitting the preformatted text button (it’s the </> butting next to the quote) on the toolbar? Also expand the error and post it so we can see that as well - really helps narrow things down. Lastly, could you use regular nodes here? May be easier to wrap your head around as this isn’t easy for a ‘my first Python’ type of task.