Why deprecating report.extra ? By doing so, you will break the compatibility of existing plugins that override pytest_runtest_makereport hook

[harmin-parra]

The commit #626 renames the report attribute extra to extras.

By doing so, you break the compatibilities of all existing pytest-html plugins that override the pytest_runtest_makereport hook.

Is it really necessary to rename this attribute ?

[BeyondEvil]

The extra attribute will continue to work (with a deprecation warning) in v4.

Yes, the attribute is a list, and so the name should reflect that.