GIMP Version: 2.8.22
Operating System: Windows
GIMP Experience: Basic Level

List any relevant plug-ins or scripts:
any py script

List any ERROR messages you received:
TypeError: can't compare gimpcolor.RGB to tuple

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Likely a silly question for an expert, but I don't have an answer:
- how to test the "values" of -for instance- the FG colour in just one line?
So far I always unpacked the r,g,b values and tested each one separately, but I would like to have a simpler way, such as:
if (gimp.get_foreground() == ((0,0,0,255))): ....
which is not accepted ("gimpcolor.RGB can't be compared with a tuple").
In my simple mind I do not understand why it is possible to set a foreground colour to ((0,0,0,255)), but it cannot be retrieved/compared in the same way.
Thanks for your help.

Yes, the foreground color you get is of type gimpcolor.RGB so you have to compare it with another object of the same type, so instead of using a plain tuple, you just create an instance of gimpcolor.RGB with the proper values. Note that gimpcolor is a separate module so you have to import it:



Two remarks:

1) like in many other places, the gimpcolor.RGB contructor takes either floating point in the [0.-1.] range or integer in the [0-255] range (but with Gimp 2.9/2.10 it will make more sense to use the floating point values).
So the code above could be written, with the same results:



2) you can avoid importing the gimpcolor module. In an object there is always a __class__ attribute to refer to the object's class, and this class can be used to call the constructor, so you can avoid the explicit import and use

Thanks a lot, ofnuts.
The first solution proposed is the one I like better, that was exactly the info I needed.