From 99b7701978d1fdc81e10c31d1ad8cce2c0c2d848 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=91=D0=BE=D1=80=D0=B8=D1=81=20=D0=92=D0=B5=D1=80=D1=85?=
 =?UTF-8?q?=D0=BE=D0=B2=D1=81=D0=BA=D0=B8=D0=B9?= <boris.verk@gmail.com>
Date: Sat, 2 Nov 2019 15:09:14 -0400
Subject: [PATCH] Convert argument to snake_case (GH-16990)

---
 Doc/library/itertools.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index 8d134d43806..3e5a6738981 100644
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -766,9 +766,9 @@ which incur interpreter overhead.
    def dotproduct(vec1, vec2):
        return sum(map(operator.mul, vec1, vec2))
 
-   def flatten(listOfLists):
+   def flatten(list_of_lists):
        "Flatten one level of nesting"
-       return chain.from_iterable(listOfLists)
+       return chain.from_iterable(list_of_lists)
 
    def repeatfunc(func, times=None, *args):
        """Repeat calls to func with specified arguments.