-install_command = pip install {opts} {packages}
-# TODO(fungi) Switch this to "error" and remove env-specific copies once
-# https://review.opendev.org/735433 and https://review.opendev.org/735443
-# merge and appear in a new PBR release
+# TODO(fungi) Switch this to "error" once
+# https://github.com/pypa/setuptools/issues/2086 and
+# https://github.com/pypa/setuptools/issues/2466 are fixed in a new release of
+# Setuptools and the vendored copy in Python 3.8 and later updated with it;
+# also that won't work for Python 3.6 due to the older Setuptools there still
+# calling imp instead of importlib so probably not while we still support 3.6