• 1
  Yes this answer is helpful ; the gettext module describes this pattern "gettext works by looking up literal strings in a database of translations, and pulling out the appropriate translated string. The usual pattern is to bind the appropriate lookup function to the name “_” (a single underscore character) so that the code is not cluttered with a lot of calls to functions with longer names." Maybe that's what sphinx is doing "under the hood"; soemthing like the examplet = gettext.translation('example_domain', 'locale', fallback=True); _ = t.gettext

  – Nate Anderson

  Mar 28 at 20:43

  3 revs
  laike9m

• 1
  Thank you, the slide did not display properly so i ended up not untersanting why my code would fail.

  – cgte

  Oct 28, 2019 at 21:29
• Hmm, I got the same answer whether perimeter had leading dunder or not.

  – Gringo Suave

  Mar 26, 2021 at 21:50

• Just to add: using propeety as a method decorator is a bit cleaner.

  – TheLizzard

  Aug 6 at 22:51

• _ _some_varaible -- .... and it reduces/hides it's visibility and be more like private variable. No, name mangling is the point, it doesn't hide the method.

  – AMC

  Feb 11, 2020 at 17:04

• 1
  Furthermore, names beginning with one or more underscores that have two or more trailing underscores behave as any other name again.

  – Bentley4

  Apr 7, 2012 at 15:19

• 1
  _ is much more similar to for example internal in c# then to private. Double underscore it much more similar to private then underscore is to private I would say.

  – Ini

  Nov 4, 2017 at 0:38

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