In Python, "Privacy" relies upon "consenting adults'" levels of understanding - you can't drive it (anything else than you can, all things considered;- ). A solitary driving underscore implies shouldn't get to it "from an external perspective" - two driving underscores (w/o following underscores) convey the message significantly more strongly
In any case, eventually, it actually relies upon social show and agreement: Python's contemplation is powerful enough that you can't cuff each and every software engineer on the planet to regard your desires.
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