v5.0.2

• Numerous fixes to CF 1.6 conformance
• Fixes handling of standard name modifiers
• Fixes to calendar handling
• Fixes to flag related attributes when only one flag is specified
• Adds possible corrections when an invalid CF standard name is provided
• Code cleanup, pre-commit and CI fixes, narrower exception handling

PRs list

• Taxa names by @benjwadams in #889
• fix typo by @ocefpaf in #895
• test on py310 by @ocefpaf in #894
• Re enable flake8 by @ocefpaf in #901
• Add code coverage to GitHub Actions by @benjwadams in #900
• Fix undefined variables/tests, linter fixes by @benjwadams in #903
• use pathlib by @ocefpaf in #908
• Standard name units and modifiers by @benjwadams in #909
• Fix none cases and bail out in failure cases for units checks by @benjwadams in #910
• Fix protocol tests that had broken URLs by @benjwadams in #912
• Handle scalar flag attributes by @benjwadams in #915
• Adds checks for .nc filename extensions by @benjwadams in #916
• Fix integration tests rebase by @benjwadams in #913
• Improve conformance by @benjwadams in #917
• Handle nonstandard calendar and leap time in time variables by @benjwadams in #918
• Add checks/tests for external variables by @benjwadams in #920
• Test for CF 1.6 conformance section 3 by @benjwadams in #923
• Flag fixes by @benjwadams in #924
• Standard name recommendations by @benjwadams in #925
• Fixes spelling issues reported by codespell by @benjwadams in #926
• Pre commit fixup/code cleanup by @benjwadams in #927
• add pre-commit-ci-config by @ocefpaf in #928
• Merge in CI changes from develop branch by @benjwadams in #929
• Precommit additional fixes by @benjwadams in #930

Full Changelog: 5.0.1...v5.0.2