paths cannot be altered by plugins

[gaborbernat]

https://coverage.readthedocs.io/en/latest/config.html#paths shows how to user can set paths. This cannot be achieved by plugins due to paths not being defined as a set/get option; but rather directly as attribute on the configuration object. Due to https://github.com/nedbat/coveragepy/blob/master/coverage/control.py#L272-L276 the plugin cannot reliably access and extend this.

Came up while trying to address asottile/covdefaults#3

[gaborbernat]

Any plans for a release anytime soon?☺️

[nedbat]

Fixed in edadbec.

[nedbat]

This is available in 5.1: https://pypi.org/project/coverage/5.1/

[gaborbernat]

Thanks!