]> git.ipfire.org Git - thirdparty/Python/cpython.git/commitdiff
bpo-38771: Explict test for None in code example (GH-17108) (GH-17109)
authorMiss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Tue, 12 Nov 2019 00:59:14 +0000 (16:59 -0800)
committerRaymond Hettinger <rhettinger@users.noreply.github.com>
Tue, 12 Nov 2019 00:59:14 +0000 (16:59 -0800)
(cherry picked from commit 98480cef9dba04794bd61c7e7cca643d384c8c35)

Co-authored-by: Jonathan Scholbach <j.scholbach@posteo.de>
Doc/library/collections.rst

index 90a3f4bea9a45b29b3acfda691bed8109c907e0f..a5e8d04099b22f9acc0dc58d78466791dd9d6e37 100644 (file)
@@ -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'])