From 98480cef9dba04794bd61c7e7cca643d384c8c35 Mon Sep 17 00:00:00 2001 From: Jonathan Scholbach Date: Tue, 12 Nov 2019 01:49:41 +0100 Subject: bpo-38771: Explict test for None in code example (GH-17108) --- Doc/library/collections.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst index 90a3f4b..a5e8d04 100644 --- a/Doc/library/collections.rst +++ b/Doc/library/collections.rst @@ -162,7 +162,7 @@ environment variables which in turn take precedence over default values:: parser.add_argument('-u', '--user') parser.add_argument('-c', '--color') namespace = parser.parse_args() - command_line_args = {k:v for k, v in vars(namespace).items() if v} + command_line_args = {k: v for k, v in vars(namespace).items() if v is not None} combined = ChainMap(command_line_args, os.environ, defaults) print(combined['color']) -- cgit v0.12