[issue38771] Bug in example of collections.ChainMap

Raymond Hettinger added the comment: New changeset d8e08456025d9349abbf76035c821d3f7b2d722a by Raymond Hettinger (Miss Islington (bot)) in branch '3.8': bpo-38771: Explict test for None in code example (GH-17108) (GH-17109) https://github.com/python/cpython/commit/d8e08456025d9349abbf76035c8

[issue38771] Bug in example of collections.ChainMap

Raymond Hettinger added the comment: New changeset cb1c06e3bfbce7f4e8dcb0db84bcee54c8d4fa21 by Raymond Hettinger (Miss Islington (bot)) in branch '3.7': bpo-38771: Explict test for None in code example (GH-17108) (GH-17110) https://github.com/python/cpython/commit/cb1c06e3bfbce7f4e8dcb0db84b

[issue38771] Bug in example of collections.ChainMap

Change by Raymond Hettinger : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed versions: +Python 3.7 ___ Python tracker ___ _

[issue38771] Bug in example of collections.ChainMap

Change by miss-islington : -- pull_requests: +16617 pull_request: https://github.com/python/cpython/pull/17110 ___ Python tracker ___ __

[issue38771] Bug in example of collections.ChainMap

Change by miss-islington : -- pull_requests: +16616 pull_request: https://github.com/python/cpython/pull/17109 ___ Python tracker ___ __

[issue38771] Bug in example of collections.ChainMap

Raymond Hettinger added the comment: New changeset 98480cef9dba04794bd61c7e7cca643d384c8c35 by Raymond Hettinger (Jonathan Scholbach) in branch 'master': bpo-38771: Explict test for None in code example (GH-17108) https://github.com/python/cpython/commit/98480cef9dba04794bd61c7e7cca643d384c8

[issue38771] Bug in example of collections.ChainMap

Raymond Hettinger added the comment: The example was just meant to be a quick snippet to suggest a possible use case. It isn't a stand-alone application. However, stylistically, this is an improvement and I'll accept some variation of the PR. -- priority: normal -> low versions: -

[issue38771] Bug in example of collections.ChainMap

Change by Raymond Hettinger : -- assignee: docs@python -> rhettinger nosy: +rhettinger ___ Python tracker ___ ___ Python-bugs-list m

[issue38771] Bug in example of collections.ChainMap

Change by Jonathan Scholbach : -- keywords: +patch pull_requests: +16614 stage: -> patch review pull_request: https://github.com/python/cpython/pull/17108 ___ Python tracker _

[issue38771] Bug in example of collections.ChainMap

New submission from Jonathan Scholbach : Below "Examples and Recipes", the Documentation of collections.ChainMap has an "Example of letting user specified command-line arguments take precedence over environment variables which in turn take precedence over default values:" In there, a ChainMap