code: def mongorestore(mongo_user, mongo_password, backup_directory_path, drop_database=False, silent=False):
      
      
      if not path.exists(backup_directory_path):
          raise Exception("the provided tar directory %s does not exist."
                          % (backup_directory_path))
      
      if silent:
          mongorestore_command = ("mongorestore --quiet -u %s -p %s %s"
                                  % (mongo_user, mongo_password, backup_directory_path))
      else:
          mongorestore_command = ("mongorestore -v -u %s -p %s %s"
                                  % (mongo_user, mongo_password, backup_directory_path))
      if drop_database:
          mongorestore_command = mongorestore_command + " --drop"
      call(mongorestore_command, silent=silent)
docs: Warning: Setting drop_database to True will drop the ENTIRE
          CURRENTLY RUNNING DATABASE before restoring.
          
          Mongorestore requires a running mongod process, in addition the provided
          user must have restore permissions for the database.  A mongolia superuser
          will have more than adequate permissions, but a regular user may not.