[request] import should be more verbose on possible error causes, when import fails

[RaiMan]

i am trying to import one .sikuli file into another so that i can reuse some code. both files are in the same folder. but that constantly fails.

Finally I found the reason: subscript.sikuli did not contain a subscript.py, because before I renamed the .sikuli folder outside in the file system, without renaming the contained .py file.

I would appreciate, if Sikuli would tell me about that problem in the future.