From c5b251e75689dde128fc11eab5ed3a060aa1c282 Mon Sep 17 00:00:00 2001
From: Chris Angelico <rosuav@gmail.com>
Date: Sat, 24 Mar 2018 20:25:27 +1100
Subject: [PATCH] PEP 572: Add another alternate spelling

---
 pep-0572.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pep-0572.rst b/pep-0572.rst
index 6e5fcd6ae..108f5687a 100644
--- a/pep-0572.rst
+++ b/pep-0572.rst
@@ -163,6 +163,10 @@ These list comprehensions are all approximately equivalent::
             yield [y, x/y]
     stuff = list(g())
 
+    # Using a mutable cache object (various forms possible)
+    c = {}
+    stuff = [[c.update(y=f(x)) or c['y'], x/c['y']] for x in range(5)]
+
     # Using a statement-local name
     stuff = [[(f(x) as y), x/y] for x in range(5)]