docs: def del_alias(alias):
      """sometimes you goof up."""
      with Database("aliases") as mydb:
          try:
              print("removing alias of %s to %s" % (alias, mydb.pop(alias)))
          except KeyError:
              print("No such alias key")
              print("Check alias db:")
              print(zip(list(mydb.keys()), list(mydb.values())))