Per PEP 503 a package should be available at this URL:
Where "packagename" is the normalized package name (that is, downcased and with runs of certain characters replaced with -). Artifactory 4.2.0 doesn't normalize the name, which causes pip to print this warning when installing packages with names requiring normalization:
pip then fetches https://artifactory/api/pypi/blueplanet-pypi/simple/, which is very slow as it is a proxy to pypi.python.org. Aside from the warning noise, this slows down installation unnecessarily.