in reply to
Re^2: Advice please on variable naming style in modules
in thread Advice please on variable naming style in modules
What's "self" to you is isync to me. If the menu needs access to the top window, it should have a $top_window. The fact that within the methods of the top window the same reference will be in a variable called $self is irrelevant. To the method within the menu it's $top_window, not $self.
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Enoch was right!
Enjoy the last years of Rome.