Documentation for ConfigParser.items() states:

When section is not given, return a list of section_name, section_proxy pairs, including DEFAULTSECT.

Otherwise, return a list of name, value pairs for the options in the given section. Optional arguments have the same meaning as for the get() method.

This fix aligns behaviour to that specified in the documentation.

As well as fixing bpo-33333 this also resolves bpo-33251 (related PR #6446).

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We won't be doing this. This is intentional behavior of configparser for backwards compatibility with versions older than 3.2 (most notably 2.7).

If cfgparser.items(section) is surprising, use cfgparser[section].items() instead.

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I thought there'd be b/c issues, closing.