Port text_classification to Python3

fluid/text_classification/clouds/scdb_parallel_executor.py

@@ -3,6 +3,7 @@ import contextlib
 import paddle
 import paddle.fluid as fluid
 import numpy as np
+import six
 import sys
 import time
 import os
@@ -46,8 +47,8 @@ def data2tensor(data, place):
     """
     data2tensor
     """
-    input_seq = to_lodtensor(map(lambda x: x[0], data), place)
-    y_data = np.array(map(lambda x: x[1], data)).astype("int64")
+    input_seq = to_lodtensor([x[0] for x in data], place)
+    y_data = np.array([x[1] for x in data]).astype("int64")
     y_data = y_data.reshape([-1, 1])
     return {"words": input_seq, "label": y_data}
 
@@ -56,8 +57,8 @@ def data2pred(data, place):
     """
     data2tensor
     """
-    input_seq = to_lodtensor(map(lambda x: x[0], data), place)
-    y_data = np.array(map(lambda x: x[1], data)).astype("int64")
+    input_seq = to_lodtensor([x[0] for x in data], place)
+    y_data = np.array([x[1] for x in data]).astype("int64")
     y_data = y_data.reshape([-1, 1])
     return {"words": input_seq}
 
@@ -79,7 +80,7 @@ def save_dict(word_dict, vocab):
     Save dict into file
     """
     with open(vocab, "w") as fout:
-        for k, v in word_dict.iteritems():
+        for k, v in six.iteritems(word_dict):
             outstr = ("%s\t%s\n" % (k, v)).encode("gb18030")
             fout.write(outstr)
 
@@ -424,7 +425,7 @@ def start_train(train_reader,
     start_exe.run(fluid.default_startup_program())
 
     exe = fluid.ParallelExecutor(use_cuda, loss_name=cost.name)
-    for pass_id in xrange(pass_num):
+    for pass_id in six.moves.xrange(pass_num):
         total_acc, total_cost, total_count, avg_cost, avg_acc = 0.0, 0.0, 0.0, 0.0, 0.0
         for data in train_reader():
             cost_val, acc_val = exe.run(feed=feeder.feed(data),

fluid/text_classification/clouds/scdb_single_card.py

@@ -3,6 +3,7 @@ import contextlib
 import paddle
 import paddle.fluid as fluid
 import numpy as np
+import six
 import sys
 import time
 import os
@@ -46,8 +47,8 @@ def data2tensor(data, place):
     """
     data2tensor
     """
-    input_seq = to_lodtensor(map(lambda x: x[0], data), place)
-    y_data = np.array(map(lambda x: x[1], data)).astype("int64")
+    input_seq = to_lodtensor([x[0] for x in data], place)
+    y_data = np.array([x[1] for x in data]).astype("int64")
     y_data = y_data.reshape([-1, 1])
     return {"words": input_seq, "label": y_data}
 
@@ -56,8 +57,8 @@ def data2pred(data, place):
     """
     data2tensor
     """
-    input_seq = to_lodtensor(map(lambda x: x[0], data), place)
-    y_data = np.array(map(lambda x: x[1], data)).astype("int64")
+    input_seq = to_lodtensor([x[0] for x in data], place)
+    y_data = np.array([x[1] for x in data]).astype("int64")
     y_data = y_data.reshape([-1, 1])
     return {"words": input_seq}
 
@@ -79,7 +80,7 @@ def save_dict(word_dict, vocab):
     Save dict into file
     """
     with open(vocab, "w") as fout:
-        for k, v in word_dict.iteritems():
+        for k, v in six.iteritems(word_dict):
             outstr = ("%s\t%s\n" % (k, v)).encode("gb18030")
             fout.write(outstr)
 
@@ -422,7 +423,7 @@ def start_train(train_reader,
     feeder = fluid.DataFeeder(feed_list=[data, label], place=place)
 
     exe.run(fluid.default_startup_program())
-    for pass_id in xrange(pass_num):
+    for pass_id in six.moves.xrange(pass_num):
         data_size, data_count, total_acc, total_cost = 0, 0, 0.0, 0.0
         for data in train_reader():
             avg_cost_np, avg_acc_np = exe.run(fluid.default_main_program(),

fluid/text_classification/train.py

 import os
+import six
 import sys
 import time
 import unittest
@@ -58,7 +59,7 @@ def train(train_reader,
     if "CE_MODE_X" in os.environ:
         fluid.default_startup_program().random_seed = 110
     exe.run(fluid.default_startup_program())
-    for pass_id in xrange(pass_num):
+    for pass_id in six.moves.xrange(pass_num):
         pass_start = time.time()
         data_size, data_count, total_acc, total_cost = 0, 0, 0.0, 0.0
         for data in train_reader():

fluid/text_classification/utils.py

@@ -43,8 +43,8 @@ def data2tensor(data, place):
     """
     data2tensor
     """
-    input_seq = to_lodtensor(map(lambda x: x[0], data), place)
-    y_data = np.array(map(lambda x: x[1], data)).astype("int64")
+    input_seq = to_lodtensor([x[0] for x in data], place)
+    y_data = np.array([x[1] for x in data]).astype("int64")
     y_data = y_data.reshape([-1, 1])
     return {"words": input_seq, "label": y_data}