http://hg.python.org/peps/rev/895942e1fab3 changeset: 4018:895942e1fab3 user: Nick Coghlan <ncoghlan@gmail.com> date: Fri Jan 27 20:58:39 2012 +1000 summary: Combine the two explanations of the term 'dunder' files: pep-0408.txt | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/pep-0408.txt b/pep-0408.txt --- a/pep-0408.txt +++ b/pep-0408.txt @@ -242,9 +242,10 @@ It was proposed [1]_ to use a package name like ``preview`` or ``exp``, instead of ``__preview__``. This was rejected in the discussion due to the special -meaning a "dunder" (double-underscore) package name (a name *with* leading and -trailing underscores) conveys in Python. Besides, a non-dunder name indicates -stability, which is not the intention of the ``__preview__`` package. +meaning a "dunder" package name (that is, a name *with* leading and +trailing double-underscores) conveys in Python. Besides, a non-dunder name +would suggest normal standard library API stability guarantees, which is not +the intention of the ``__preview__`` package. Preserving pickle compatibility -- Repository URL: http://hg.python.org/peps