A Virtual Repository defined in Artifactory aggregates packages from both local and remote repositories.
This allows you to access both locally hosted PyPI packages and remote proxied PyPI repositories from a single URL defined for the virtual repository.
To define a virtual PyPI repository, from the Administration module, go to Repositories | Repositories | Virtual, set its Package Type to be PyPI, select the underlying local and remote PyPI repositories to include in the Basic settings tab, and click Save & Finish.