Paddle/doc_cn/ui/data_provider/sentimental_config.py

from paddle.trainer_config_helpers import *

dictionary = dict()
...  #  read dictionary from outside

define_py_data_sources2(train_list='train.list', test_list=None,
                        module='sentimental_provider', obj='process',
                        # above codes same as mnist sample.
                        args={  # pass to provider.
                            'dictionary': dictionary
                        })