From 5305b2749a4c5f913b0fa8b5ffe6ba616b621bab Mon Sep 17 00:00:00 2001
From: Kaipeng Deng <dengkaipeng@baidu.com>
Date: Wed, 11 Nov 2020 15:04:26 +0800
Subject: [PATCH] deprecated APIs under paddle.dataset. test=develop (#28423)

---
 python/paddle/__init__.py            |  2 --
 python/paddle/dataset/__init__.py    | 17 ++-----------
 python/paddle/dataset/cifar.py       | 21 ++++++++++++++++
 python/paddle/dataset/conll05.py     | 17 +++++++++++++
 python/paddle/dataset/flowers.py     | 13 ++++++++++
 python/paddle/dataset/imdb.py        | 21 ++++++++++++++++
 python/paddle/dataset/imikolov.py    | 13 ++++++++++
 python/paddle/dataset/mnist.py       | 13 ++++++++++
 python/paddle/dataset/movielens.py   | 37 ++++++++++++++++++++++++++++
 python/paddle/dataset/uci_housing.py | 17 +++++++++++++
 python/paddle/dataset/voc2012.py     | 13 ++++++++++
 python/paddle/dataset/wmt14.py       | 21 ++++++++++++++++
 python/paddle/dataset/wmt16.py       | 21 ++++++++++++++++
 13 files changed, 209 insertions(+), 17 deletions(-)

diff --git a/python/paddle/__init__.py b/python/paddle/__init__.py
index 50c1142c7b..400dbc85d6 100755
--- a/python/paddle/__init__.py
+++ b/python/paddle/__init__.py
@@ -27,8 +27,6 @@ except ImportError:
      import paddle from the source directory; please install paddlepaddle*.whl firstly.'''
                      )
 
-import paddle.reader
-import paddle.dataset
 import paddle.batch
 batch = batch.batch
 from .fluid import monkey_patch_variable
diff --git a/python/paddle/dataset/__init__.py b/python/paddle/dataset/__init__.py
index d1e5975856..c2739d3805 100644
--- a/python/paddle/dataset/__init__.py
+++ b/python/paddle/dataset/__init__.py
@@ -29,18 +29,5 @@ import paddle.dataset.flowers
 import paddle.dataset.voc2012
 import paddle.dataset.image
 
-__all__ = [
-    'mnist',
-    'imikolov',
-    'imdb',
-    'cifar',
-    'movielens',
-    'conll05',
-    'uci_housing',
-    'wmt14',
-    'wmt16',
-    'mq2007',
-    'flowers',
-    'voc2012',
-    'image',
-]
+# set __all__ as empty for not showing APIs under paddle.dataset
+__all__ = []
diff --git a/python/paddle/dataset/cifar.py b/python/paddle/dataset/cifar.py
index 16f06f2400..2ee95c3723 100644
--- a/python/paddle/dataset/cifar.py
+++ b/python/paddle/dataset/cifar.py
@@ -32,6 +32,7 @@ from __future__ import print_function
 import itertools
 import numpy
 import paddle.dataset.common
+import paddle.utils.deprecated as deprecated
 import tarfile
 import six
 from six.moves import cPickle as pickle
@@ -75,6 +76,10 @@ def reader_creator(filename, sub_name, cycle=False):
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.Cifar100",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train100():
     """
     CIFAR-100 training set creator.
@@ -90,6 +95,10 @@ def train100():
         'train')
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.Cifar100",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test100():
     """
     CIFAR-100 test set creator.
@@ -105,6 +114,10 @@ def test100():
         'test')
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.Cifar10",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train10(cycle=False):
     """
     CIFAR-10 training set creator.
@@ -123,6 +136,10 @@ def train10(cycle=False):
         cycle=cycle)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.Cifar10",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test10(cycle=False):
     """
     CIFAR-10 test set creator.
@@ -141,6 +158,10 @@ def test10(cycle=False):
         cycle=cycle)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.Cifar10",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     paddle.dataset.common.download(CIFAR10_URL, 'cifar', CIFAR10_MD5)
     paddle.dataset.common.download(CIFAR100_URL, 'cifar', CIFAR100_MD5)
diff --git a/python/paddle/dataset/conll05.py b/python/paddle/dataset/conll05.py
index 81a8cfc2e6..e7176626ca 100644
--- a/python/paddle/dataset/conll05.py
+++ b/python/paddle/dataset/conll05.py
@@ -27,6 +27,7 @@ import gzip
 import itertools
 import paddle.dataset.common
 import paddle.compat as cpt
+import paddle.utils.deprecated as deprecated
 from six.moves import zip, range
 
 __all__ = ['test, get_dict', 'get_embedding']
@@ -202,6 +203,10 @@ def reader_creator(corpus_reader,
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Conll05st",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def get_dict():
     """
     Get the word, verb and label dictionary of Wikipedia corpus.
@@ -215,6 +220,10 @@ def get_dict():
     return word_dict, verb_dict, label_dict
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Conll05st",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def get_embedding():
     """
     Get the trained word vector based on Wikipedia corpus.
@@ -222,6 +231,10 @@ def get_embedding():
     return paddle.dataset.common.download(EMB_URL, 'conll05st', EMB_MD5)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Conll05st",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test():
     """
     Conll05 test set creator.
@@ -242,6 +255,10 @@ def test():
     return reader_creator(reader, word_dict, verb_dict, label_dict)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Conll05st",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     paddle.dataset.common.download(WORDDICT_URL, 'conll05st', WORDDICT_MD5)
     paddle.dataset.common.download(VERBDICT_URL, 'conll05st', VERBDICT_MD5)
diff --git a/python/paddle/dataset/flowers.py b/python/paddle/dataset/flowers.py
index bb60c58211..22e0838b12 100644
--- a/python/paddle/dataset/flowers.py
+++ b/python/paddle/dataset/flowers.py
@@ -39,6 +39,7 @@ import scipy.io as scio
 from paddle.dataset.image import *
 from paddle.reader import map_readers, xmap_readers
 from paddle import compat as cpt
+import paddle.utils.deprecated as deprecated
 import os
 import numpy as np
 from multiprocessing import cpu_count
@@ -143,6 +144,10 @@ def reader_creator(data_file,
         return map_readers(mapper, reader)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.Flowers",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train(mapper=train_mapper, buffered_size=1024, use_xmap=True, cycle=False):
     '''
     Create flowers training set reader.
@@ -172,6 +177,10 @@ def train(mapper=train_mapper, buffered_size=1024, use_xmap=True, cycle=False):
         cycle=cycle)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.Flowers",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test(mapper=test_mapper, buffered_size=1024, use_xmap=True, cycle=False):
     '''
     Create flowers test set reader.
@@ -201,6 +210,10 @@ def test(mapper=test_mapper, buffered_size=1024, use_xmap=True, cycle=False):
         cycle=cycle)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.Flowers",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def valid(mapper=test_mapper, buffered_size=1024, use_xmap=True):
     '''
     Create flowers validation set reader.
diff --git a/python/paddle/dataset/imdb.py b/python/paddle/dataset/imdb.py
index d76a533a55..e5a3b6074c 100644
--- a/python/paddle/dataset/imdb.py
+++ b/python/paddle/dataset/imdb.py
@@ -23,6 +23,7 @@ Besides, this module also provides API for building dictionary.
 from __future__ import print_function
 
 import paddle.dataset.common
+import paddle.utils.deprecated as deprecated
 import collections
 import tarfile
 import re
@@ -76,6 +77,10 @@ def build_dict(pattern, cutoff):
     return word_idx
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Imdb",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def reader_creator(pos_pattern, neg_pattern, word_idx):
     UNK = word_idx['<unk>']
     INS = []
@@ -94,6 +99,10 @@ def reader_creator(pos_pattern, neg_pattern, word_idx):
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Imdb",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train(word_idx):
     """
     IMDB training set creator.
@@ -111,6 +120,10 @@ def train(word_idx):
         re.compile("aclImdb/train/neg/.*\.txt$"), word_idx)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Imdb",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test(word_idx):
     """
     IMDB test set creator.
@@ -128,6 +141,10 @@ def test(word_idx):
         re.compile("aclImdb/test/neg/.*\.txt$"), word_idx)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Imdb",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def word_dict():
     """
     Build a word dictionary from the corpus.
@@ -139,5 +156,9 @@ def word_dict():
         re.compile("aclImdb/((train)|(test))/((pos)|(neg))/.*\.txt$"), 150)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Imdb",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     paddle.dataset.common.download(URL, 'imdb', MD5)
diff --git a/python/paddle/dataset/imikolov.py b/python/paddle/dataset/imikolov.py
index e1967d3db8..cc8e95fc34 100644
--- a/python/paddle/dataset/imikolov.py
+++ b/python/paddle/dataset/imikolov.py
@@ -22,6 +22,7 @@ into paddle reader creators.
 from __future__ import print_function
 
 import paddle.dataset.common
+import paddle.utils.deprecated as deprecated
 import collections
 import tarfile
 import six
@@ -111,6 +112,10 @@ def reader_creator(filename, word_idx, n, data_type):
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Imikolov",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train(word_idx, n, data_type=DataType.NGRAM):
     """
     imikolov training set creator.
@@ -131,6 +136,10 @@ def train(word_idx, n, data_type=DataType.NGRAM):
                           data_type)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Imikolov",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test(word_idx, n, data_type=DataType.NGRAM):
     """
     imikolov test set creator.
@@ -151,5 +160,9 @@ def test(word_idx, n, data_type=DataType.NGRAM):
                           data_type)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Imikolov",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     paddle.dataset.common.download(URL, "imikolov", MD5)
diff --git a/python/paddle/dataset/mnist.py b/python/paddle/dataset/mnist.py
index f52ffa049b..14e54d593b 100644
--- a/python/paddle/dataset/mnist.py
+++ b/python/paddle/dataset/mnist.py
@@ -21,6 +21,7 @@ parse training set and test set into paddle reader creators.
 from __future__ import print_function
 
 import paddle.dataset.common
+import paddle.utils.deprecated as deprecated
 import gzip
 import numpy
 import struct
@@ -88,6 +89,10 @@ def reader_creator(image_filename, label_filename, buffer_size):
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.MNIST",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train():
     """
     MNIST training set creator.
@@ -105,6 +110,10 @@ def train():
                                        TRAIN_LABEL_MD5), 100)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.MNIST",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test():
     """
     MNIST test set creator.
@@ -121,6 +130,10 @@ def test():
         100)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.MNIST",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     paddle.dataset.common.download(TRAIN_IMAGE_URL, 'mnist', TRAIN_IMAGE_MD5)
     paddle.dataset.common.download(TRAIN_LABEL_URL, 'mnist', TRAIN_LABEL_MD5)
diff --git a/python/paddle/dataset/movielens.py b/python/paddle/dataset/movielens.py
index 22ecfac953..f753f405bb 100644
--- a/python/paddle/dataset/movielens.py
+++ b/python/paddle/dataset/movielens.py
@@ -27,6 +27,7 @@ from __future__ import print_function
 import numpy as np
 import zipfile
 import paddle.dataset.common
+import paddle.utils.deprecated as deprecated
 import re
 import random
 import functools
@@ -167,6 +168,10 @@ def __reader__(rand_seed=0, test_ratio=0.1, is_test=False):
                     yield usr.value() + mov.value() + [[rating]]
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def __reader_creator__(**kwargs):
     return lambda: __reader__(**kwargs)
 
@@ -175,6 +180,10 @@ train = functools.partial(__reader_creator__, is_test=False)
 test = functools.partial(__reader_creator__, is_test=True)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def get_movie_title_dict():
     """
     Get movie title dictionary.
@@ -190,6 +199,10 @@ def __max_index_info__(a, b):
         return b
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def max_movie_id():
     """
     Get the maximum value of movie id.
@@ -198,6 +211,10 @@ def max_movie_id():
     return six.moves.reduce(__max_index_info__, list(MOVIE_INFO.values())).index
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def max_user_id():
     """
     Get the maximum value of user id.
@@ -213,6 +230,10 @@ def __max_job_id_impl__(a, b):
         return b
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def max_job_id():
     """
     Get the maximum value of job id.
@@ -222,6 +243,10 @@ def max_job_id():
                             list(USER_INFO.values())).job_id
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def movie_categories():
     """
     Get movie categories dictionary.
@@ -230,6 +255,10 @@ def movie_categories():
     return CATEGORIES_DICT
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def user_info():
     """
     Get user info dictionary.
@@ -238,6 +267,10 @@ def user_info():
     return USER_INFO
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def movie_info():
     """
     Get movie info dictionary.
@@ -255,6 +288,10 @@ def unittest():
     print(train_count, test_count)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.Movielens",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     paddle.dataset.common.download(URL, "movielens", MD5)
 
diff --git a/python/paddle/dataset/uci_housing.py b/python/paddle/dataset/uci_housing.py
index f7930d34f9..daed62fbef 100644
--- a/python/paddle/dataset/uci_housing.py
+++ b/python/paddle/dataset/uci_housing.py
@@ -27,6 +27,7 @@ import tempfile
 import tarfile
 import os
 import paddle.dataset.common
+import paddle.utils.deprecated as deprecated
 
 __all__ = ['train', 'test']
 
@@ -83,6 +84,10 @@ def load_data(filename, feature_num=14, ratio=0.8):
     UCI_TEST_DATA = data[offset:]
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.UCIHousing",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train():
     """
     UCI_HOUSING training set creator.
@@ -103,6 +108,10 @@ def train():
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.UCIHousing",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test():
     """
     UCI_HOUSING test set creator.
@@ -134,6 +143,10 @@ def fluid_model():
     return dirpath
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.UCIHousing",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def predict_reader():
     """
     It returns just one tuple data to do inference.
@@ -146,5 +159,9 @@ def predict_reader():
     return (UCI_TEST_DATA[0][:-1], )
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.UCIHousing",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     paddle.dataset.common.download(URL, 'uci_housing', MD5)
diff --git a/python/paddle/dataset/voc2012.py b/python/paddle/dataset/voc2012.py
index 5068893765..5a0ff76aab 100644
--- a/python/paddle/dataset/voc2012.py
+++ b/python/paddle/dataset/voc2012.py
@@ -26,6 +26,7 @@ import io
 import numpy as np
 from paddle.dataset.common import download
 from paddle.dataset.image import *
+import paddle.utils.deprecated as deprecated
 from PIL import Image
 
 __all__ = ['train', 'test', 'val']
@@ -66,6 +67,10 @@ def reader_creator(filename, sub_name):
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.VOC2012",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train():
     """
     Create a train dataset reader containing 2913 images in HWC order.
@@ -73,6 +78,10 @@ def train():
     return reader_creator(download(VOC_URL, CACHE_DIR, VOC_MD5), 'trainval')
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.VOC2012",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test():
     """
     Create a test dataset reader containing 1464 images in HWC order.
@@ -80,6 +89,10 @@ def test():
     return reader_creator(download(VOC_URL, CACHE_DIR, VOC_MD5), 'train')
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.vision.datasets.VOC2012",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def val():
     """
     Create a val dataset reader containing 1449 images in HWC order.
diff --git a/python/paddle/dataset/wmt14.py b/python/paddle/dataset/wmt14.py
index 129e1129fb..3bd5e8d5ba 100644
--- a/python/paddle/dataset/wmt14.py
+++ b/python/paddle/dataset/wmt14.py
@@ -28,6 +28,7 @@ import gzip
 
 import paddle.dataset.common
 import paddle.compat as cpt
+import paddle.utils.deprecated as deprecated
 
 __all__ = [
     'train',
@@ -114,6 +115,10 @@ def reader_creator(tar_file, file_name, dict_size):
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT14",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train(dict_size):
     """
     WMT14 training set creator.
@@ -130,6 +135,10 @@ def train(dict_size):
         'train/train', dict_size)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT14",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test(dict_size):
     """
     WMT14 test set creator.
@@ -146,12 +155,20 @@ def test(dict_size):
         'test/test', dict_size)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT14",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def gen(dict_size):
     return reader_creator(
         paddle.dataset.common.download(URL_TRAIN, 'wmt14', MD5_TRAIN),
         'gen/gen', dict_size)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT14",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def get_dict(dict_size, reverse=True):
     # if reverse = False, return dict = {'a':'001', 'b':'002', ...}
     # else reverse = true, return dict = {'001':'a', '002':'b', ...}
@@ -163,6 +180,10 @@ def get_dict(dict_size, reverse=True):
     return src_dict, trg_dict
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT14",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     paddle.dataset.common.download(URL_TRAIN, 'wmt14', MD5_TRAIN)
     paddle.dataset.common.download(URL_MODEL, 'wmt14', MD5_MODEL)
diff --git a/python/paddle/dataset/wmt16.py b/python/paddle/dataset/wmt16.py
index 251e305104..7f11bc4b1f 100644
--- a/python/paddle/dataset/wmt16.py
+++ b/python/paddle/dataset/wmt16.py
@@ -38,6 +38,7 @@ from collections import defaultdict
 
 import paddle
 import paddle.compat as cpt
+import paddle.utils.deprecated as deprecated
 
 __all__ = [
     "train",
@@ -144,6 +145,10 @@ def reader_creator(tar_file, file_name, src_dict_size, trg_dict_size, src_lang):
     return reader
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT16",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def train(src_dict_size, trg_dict_size, src_lang="en"):
     """
     WMT16 train set reader.
@@ -193,6 +198,10 @@ def train(src_dict_size, trg_dict_size, src_lang="en"):
         src_lang=src_lang)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT16",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def test(src_dict_size, trg_dict_size, src_lang="en"):
     """
     WMT16 test set reader.
@@ -242,6 +251,10 @@ def test(src_dict_size, trg_dict_size, src_lang="en"):
         src_lang=src_lang)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT16",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def validation(src_dict_size, trg_dict_size, src_lang="en"):
     """
     WMT16 validation set reader.
@@ -289,6 +302,10 @@ def validation(src_dict_size, trg_dict_size, src_lang="en"):
         src_lang=src_lang)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT16",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def get_dict(lang, dict_size, reverse=False):
     """
     return the word dictionary for the specified language.
@@ -319,6 +336,10 @@ def get_dict(lang, dict_size, reverse=False):
     return __load_dict(tar_file, dict_size, lang, reverse)
 
 
+@deprecated(
+    since="2.0.0",
+    update_to="paddle.text.datasets.WMT16",
+    reason="Please use new dataset API which supports paddle.io.DataLoader")
 def fetch():
     """download the entire dataset.
     """
-- 
GitLab