On the https://pytest-xdist.readthedocs.io/en/stable/how-to.html#xdist.is_xdist_master url, for me the description is: **Return True if this is the xdist controller, False otherwise.**  Based on the original ticket: https://github.com/pytest-dev/pytest-xdist/issues/504 It should be: **Return True if this is the xdist master, False otherwise.**