lib: self: super:

with self;

let
  # Removing recurseForDerivation prevents derivations of aliased attribute
  # set to appear while listing all the packages available.
  removeRecurseForDerivations = alias: with lib;
      if alias.recurseForDerivations or false then
            removeAttrs alias ["recurseForDerivations"]
                else alias;

  # Disabling distribution prevents top-level aliases for non-recursed package
  # sets from building on Hydra.
  removeDistribute = alias: with lib;
    if isDerivation alias then
      dontDistribute alias
    else alias;

  # Make sure that we are not shadowing something from
  # python-packages.nix.
  checkInPkgs = n: alias: if builtins.hasAttr n super
                          then throw "Alias ${n} is still in python-packages.nix"
                          else alias;

  mapAliases = aliases:
    lib.mapAttrs (n: alias: removeDistribute
                             (removeRecurseForDerivations
                              (checkInPkgs n alias)))
                     aliases;
in

  ### Deprecated aliases - for backward compatibility

mapAliases ({
  smart_open = smart-open; # added 2021-03-14
  google_api_python_client = google-api-python-client; # added 2021-03-19
  googleapis_common_protos = googleapis-common-protos; # added 2021-03-19
  HAP-python = hap-python; # added 2021-06-01
  MechanicalSoup = mechanicalsoup; # added 2021-06-01
  setuptools_scm = setuptools-scm; # added 2021-06-03
})