[docs] [issue13219] re module doc has minor inaccuracy in character sets

Ezio Melotti report at bugs.python.org
Thu Oct 20 19:17:23 CEST 2011

Ezio Melotti <ezio.melotti at gmail.com> added the comment:

The "tricks" of putting '-' at the beginning/end and ']' at the beginning are well known and works with most of the implementations afaik, but I would consider the behavior of [._-a-z] as an implementation detail and don't expect it to work elsewhere.


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