pygtk - Python Gtk3: "mark-set" signal of a Gtk.Textbuffer -


i trying understand strange behaviour of mark-set signal emitted gtk.textbuffer in python program. in fact signal emitted (in case) multiple times single user action. sounds not logical me , didn't find reference in documentation. well, reference find unresolved question on website.

the question i'm talking one: gtk3 python, textview rising multiple 'mark-set' signals

i'm trying same code in question , same result. has idea what's going wrong? thank clue or piece of advice.

ps: gtk3 used. i've tried run under both linux , osx , got same behavior.

change test function to:

def test (buffer, location, mark, user_data=none):     print(mark.get_name())

so can see names of marks, marks builtin in buffer gtk


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