From: Raymond Hettinger <rhettinger@users.noreply.github.com>
Date: Sat, 4 Apr 2020 18:03:04 +0000 (-0700)
Subject: Convert tuples to sets for faster searches (GH-19365)
X-Git-Tag: v3.9.0a6~194
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1ae6445391cc3519733df69a4448059d6eff3c6f;p=thirdparty%2FPython%2Fcpython.git

Convert tuples to sets for faster searches (GH-19365)
---

diff --git a/Lib/typing.py b/Lib/typing.py
index 0a685d304bd9..53518830002c 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -1716,11 +1716,11 @@ def _make_nmtuple(name, types):
 
 
 # attributes prohibited to set in NamedTuple class syntax
-_prohibited = ('__new__', '__init__', '__slots__', '__getnewargs__',
+_prohibited = {'__new__', '__init__', '__slots__', '__getnewargs__',
                '_fields', '_field_defaults', '_field_types',
-               '_make', '_replace', '_asdict', '_source')
+               '_make', '_replace', '_asdict', '_source'}
 
-_special = ('__module__', '__name__', '__annotations__')
+_special = {'__module__', '__name__', '__annotations__'}
 
 
 class NamedTupleMeta(type):