fix example docs style (#517)

Author: zsdonghao

example/tutorial_atari_pong.py

@@ -133,11 +133,7 @@ def prepro(I):
             prev_x = None
 
         if reward != 0:
-            print(
-                (
-                    'episode %d: game %d took %.5fs, reward: %f' %
-                    (episode_number, game_number, time.time() - start_time, reward)
-                ), ('' if reward == -1 else ' !!!!!!!!')
-            )
+            print(('episode %d: game %d took %.5fs, reward: %f' % (episode_number, game_number, \
+                time.time() - start_time, reward)), ('' if reward == -1 else ' !!!!!!!!'))
             start_time = time.time()
             game_number += 1

example/tutorial_binarynet_cifar10_tfrecord.py

@@ -148,86 +148,31 @@ def read_and_decode(filename, is_train=None):
     # prepare data in cpu
     x_train_, y_train_ = read_and_decode("train.cifar10", True)
     x_test_, y_test_ = read_and_decode("test.cifar10", False)
-
-    x_train_batch, y_train_batch = tf.train.shuffle_batch(
-        [x_train_, y_train_], batch_size=batch_size, capacity=2000, min_after_dequeue=1000, num_threads=32
-    )  # set the number of threads here
+    # set the number of threads here
+    x_train_batch, y_train_batch = tf.train.shuffle_batch([x_train_, y_train_], \
+        batch_size=batch_size, capacity=2000, min_after_dequeue=1000, num_threads=32)
     # for testing, uses batch instead of shuffle_batch
-    x_test_batch, y_test_batch = tf.train.batch(
-        [x_test_, y_test_], batch_size=batch_size, capacity=50000, num_threads=32
-    )
+    x_test_batch, y_test_batch = tf.train.batch([x_test_, y_test_], \
+        batch_size=batch_size, capacity=50000, num_threads=32)
 
     def model(x_crop, y_, reuse):
         """ For more simplified CNN APIs, check tensorlayer.org """
-        W_init = tf.truncated_normal_initializer(stddev=5e-2)
-        W_init2 = tf.truncated_normal_initializer(stddev=0.04)
-        b_init2 = tf.constant_initializer(value=0.1)
         with tf.variable_scope("model", reuse=reuse):
             net = tl.layers.InputLayer(x_crop, name='input')
-            net = tl.layers.Conv2d(net, 64, (5, 5), (1, 1), act=tf.nn.relu, padding='SAME', W_init=W_init, name='cnn1')
+            net = tl.layers.Conv2d(net, 64, (5, 5), (1, 1), act=tf.nn.relu, padding='SAME', name='cnn1')
             net = tl.layers.SignLayer(net)
             net = tl.layers.MaxPool2d(net, (3, 3), (2, 2), padding='SAME', name='pool1')
-            net = tl.layers.LocalResponseNormLayer(
-                net, depth_radius=4, bias=1.0, alpha=0.001 / 9.0, beta=0.75, name='norm1'
-            )
-            net = tl.layers.BinaryConv2d(
-                net, 64, (5, 5), (1, 1), act=tf.nn.relu, padding='SAME', W_init=W_init, name='cnn2'
-            )
-            net = tl.layers.LocalResponseNormLayer(
-                net, depth_radius=4, bias=1.0, alpha=0.001 / 9.0, beta=0.75, name='norm2'
-            )
+            net = tl.layers.LocalResponseNormLayer(net, 4, 1.0, 0.001 / 9.0, 0.75, name='norm1')
+            net = tl.layers.BinaryConv2d(net, 64, (5, 5), (1, 1), act=tf.nn.relu, padding='SAME', name='cnn2')
+            net = tl.layers.LocalResponseNormLayer(net, 4, 1.0, 0.001 / 9.0, 0.75, name='norm2')
             net = tl.layers.MaxPool2d(net, (3, 3), (2, 2), padding='SAME', name='pool2')
-            net = tl.layers.FlattenLayer(net, name='flatten')  # output: (batch_size, 2304)
+            net = tl.layers.FlattenLayer(net, name='flatten')
             net = tl.layers.SignLayer(net)
-            net = tl.layers.BinaryDenseLayer(
-                net, n_units=384, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d1relu'
-            )  # output: (batch_size, 384)
+            net = tl.layers.BinaryDenseLayer(net, 384, act=tf.nn.relu, name='d1relu')
             net = tl.layers.SignLayer(net)
-            net = tl.layers.BinaryDenseLayer(
-                net, n_units=192, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d2relu'
-            )  # output: (batch_size, 192)
-            net = tl.layers.DenseLayer(
-                net, n_units=10, act=tf.identity, W_init=W_init2, name='output'
-            )  # output: (batch_size, 10)
-            y = net.outputs
-
-            ce = tl.cost.cross_entropy(y, y_, name='cost')
-            # L2 for the MLP, without this, the accuracy will be reduced by 15%.
-            L2 = 0
-            for p in tl.layers.get_variables_with_name('relu/W', True, True):
-                L2 += tf.contrib.layers.l2_regularizer(0.004)(p)
-            cost = ce + L2
+            net = tl.layers.BinaryDenseLayer(net, 192, act=tf.nn.relu, name='d2relu')
+            net = tl.layers.DenseLayer(net, 10, act=tf.identity, name='output')
 
-            # correct_prediction = tf.equal(tf.argmax(tf.nn.softmax(y), 1), y_)
-            correct_prediction = tf.equal(tf.cast(tf.argmax(y, 1), tf.int32), y_)
-            acc = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
-
-            return net, cost, acc
-
-    def model_batch_norm(x_crop, y_, reuse, is_train):
-        """ Batch normalization should be placed before rectifier. """
-        W_init = tf.truncated_normal_initializer(stddev=5e-2)
-        W_init2 = tf.truncated_normal_initializer(stddev=0.04)
-        b_init2 = tf.constant_initializer(value=0.1)
-        with tf.variable_scope("model", reuse=reuse):
-            net = InputLayer(x_crop, name='input')
-
-            net = tl.layers.Conv2d(net, 64, (5, 5), (1, 1), padding='SAME', W_init=W_init, b_init=None, name='cnn1')
-            net = tl.layers.BatchNormLayer(net, is_train, act=tf.nn.relu, name='batch1')
-            net = tl.layers.MaxPool2d(net, (3, 3), (2, 2), padding='SAME', name='pool1')
-            net = tl.layers.Conv2d(net, 64, (5, 5), (1, 1), padding='SAME', W_init=W_init, b_init=None, name='cnn2')
-            net = tl.layers.BatchNormLayer(net, is_train, act=tf.nn.relu, name='batch2')
-            net = tl.layers.MaxPool2d(net, (3, 3), (2, 2), padding='SAME', name='pool2')
-            net = tl.layers.FlattenLayer(net, name='flatten')  # output: (batch_size, 2304)
-            net = tl.layers.DenseLayer(
-                net, n_units=384, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d1relu'
-            )  # output: (batch_size, 384)
-            net = tl.layers.DenseLayer(
-                net, n_units=192, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d2relu'
-            )  # output: (batch_size, 192)
-            net = tl.layers.DenseLayer(
-                net, n_units=10, act=tf.identity, W_init=W_init2, name='output'
-            )  # output: (batch_size, 10)
             y = net.outputs
 
             ce = tl.cost.cross_entropy(y, y_, name='cost')
@@ -237,6 +182,7 @@ def model_batch_norm(x_crop, y_, reuse, is_train):
                 L2 += tf.contrib.layers.l2_regularizer(0.004)(p)
             cost = ce + L2
 
+            # correct_prediction = tf.equal(tf.argmax(tf.nn.softmax(y), 1), y_)
             correct_prediction = tf.equal(tf.cast(tf.argmax(y, 1), tf.int32), y_)
             acc = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
 
@@ -249,12 +195,8 @@ def model_batch_norm(x_crop, y_, reuse, is_train):
     # cost, acc, network = model(x_crop, y_, None)
 
     with tf.device('/gpu:0'):  # <-- remove it if you don't have GPU
-        ## using local response normalization
         network, cost, acc, = model(x_train_batch, y_train_batch, False)
         _, cost_test, acc_test = model(x_test_batch, y_test_batch, True)
-        ## you may want to try batch normalization
-        # network, cost, acc, = model_batch_norm(x_train_batch, y_train_batch, None, is_train=True)
-        # _, cost_test, acc_test = model_batch_norm(x_test_batch, y_test_batch, True, is_train=False)
 
     ## train
     n_epoch = 50000
@@ -297,10 +239,8 @@ def model_batch_norm(x_crop, y_, reuse, is_train):
             n_batch += 1
 
         if epoch + 1 == 1 or (epoch + 1) % print_freq == 0:
-            print(
-                "Epoch %d : Step %d-%d of %d took %fs" %
-                (epoch, step, step + n_step_epoch, n_step, time.time() - start_time)
-            )
+            print("Epoch %d : Step %d-%d of %d took %fs" % \
+                (epoch, step, step + n_step_epoch, n_step, time.time() - start_time))
             print("   train loss: %f" % (train_loss / n_batch))
             print("   train acc: %f" % (train_acc / n_batch))
 

example/tutorial_binarynet_mnist_cnn.py

@@ -2,9 +2,7 @@
 # -*- coding: utf-8 -*-
 
 import time
-
 import tensorflow as tf
-
 import tensorlayer as tl
 
 X_train, y_train, X_val, y_val, X_test, y_test = \

example/tutorial_cartpole_ac.py

@@ -147,9 +147,8 @@ def learn(self, s, r, s_):
 sess = tf.Session()
 
 actor = Actor(sess, n_features=N_F, n_actions=N_A, lr=LR_A)
-critic = Critic(
-    sess, n_features=N_F, lr=LR_C
-)  # we need a good teacher, so the teacher should learn faster than the actor
+# we need a good teacher, so the teacher should learn faster than the actor
+critic = Critic(sess, n_features=N_F, lr=LR_C)
 
 tl.layers.initialize_global_variables(sess)
 
@@ -193,10 +192,8 @@ def learn(self, s, r, s_):
                 running_reward = running_reward * 0.95 + ep_rs_sum * 0.05
             # start rending if running_reward greater than a threshold
             # if running_reward > DISPLAY_REWARD_THRESHOLD: RENDER = True
-            print(
-                "Episode: %d reward: %f running_reward %f took: %.5f" %
-                (i_episode, ep_rs_sum, running_reward, time.time() - episode_time)
-            )
+            print("Episode: %d reward: %f running_reward %f took: %.5f" % \
+                (i_episode, ep_rs_sum, running_reward, time.time() - episode_time))
 
             # Early Stopping for quick check
             if t >= MAX_EP_STEPS:

example/tutorial_cifar10.py

@@ -1,13 +1,9 @@
 #! /usr/bin/python
 # -*- coding: utf-8 -*-
 
-# tl.prepro for data augmentation
-
 import time
-
 import numpy as np
 import tensorflow as tf
-
 import tensorlayer as tl
 from tensorlayer.layers import *
 
@@ -23,36 +19,17 @@ def model(x, y_, reuse):
     with tf.variable_scope("model", reuse=reuse):
         net = InputLayer(x, name='input')
         net = Conv2d(net, 64, (5, 5), (1, 1), act=tf.nn.relu, padding='SAME', W_init=W_init, name='cnn1')
-        # net = Conv2dLayer(net, act=tf.nn.relu, shape=[5, 5, 3, 64],
-        #             strides=[1, 1, 1, 1], padding='SAME',                 # 64 features for each 5x5x3 patch
-        #             W_init=W_init, name ='cnn1')           # output: (batch_size, 24, 24, 64)
         net = MaxPool2d(net, (3, 3), (2, 2), padding='SAME', name='pool1')
-        # net = PoolLayer(net, ksize=[1, 3, 3, 1], strides=[1, 2, 2, 1],
-        #             padding='SAME', pool = tf.nn.max_pool, name ='pool1',)# output: (batch_size, 12, 12, 64)
         net = LocalResponseNormLayer(net, depth_radius=4, bias=1.0, alpha=0.001 / 9.0, beta=0.75, name='norm1')
-        # net.outputs = tf.nn.lrn(net.outputs, 4, bias=1.0, alpha=0.001 / 9.0,
-        #            beta=0.75, name='norm1')
 
         net = Conv2d(net, 64, (5, 5), (1, 1), act=tf.nn.relu, padding='SAME', W_init=W_init, name='cnn2')
-        # net = Conv2dLayer(net, act=tf.nn.relu, shape=[5, 5, 64, 64],
-        #             strides=[1, 1, 1, 1], padding='SAME',                 # 64 features for each 5x5 patch
-        #             W_init=W_init, name ='cnn2')           # output: (batch_size, 12, 12, 64)
         net = LocalResponseNormLayer(net, depth_radius=4, bias=1.0, alpha=0.001 / 9.0, beta=0.75, name='norm2')
-        # net.outputs = tf.nn.lrn(net.outputs, 4, bias=1.0, alpha=0.001 / 9.0,
-        #             beta=0.75, name='norm2')
         net = MaxPool2d(net, (3, 3), (2, 2), padding='SAME', name='pool2')
-        # net = PoolLayer(net, ksize=[1, 3, 3, 1], strides=[1, 2, 2, 1],
-        #             padding='SAME', pool = tf.nn.max_pool, name ='pool2') # output: (batch_size, 6, 6, 64)
-        net = FlattenLayer(net, name='flatten')  # output: (batch_size, 2304)
-        net = DenseLayer(
-            net, n_units=384, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d1relu'
-        )  # output: (batch_size, 384)
-        net = DenseLayer(
-            net, n_units=192, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d2relu'
-        )  # output: (batch_size, 192)
-        net = DenseLayer(
-            net, n_units=10, act=tf.identity, W_init=tf.truncated_normal_initializer(stddev=1 / 192.0), name='output'
-        )  # output: (batch_size, 10)
+
+        net = FlattenLayer(net, name='flatten')
+        net = DenseLayer(net, 384, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d1relu')
+        net = DenseLayer(net, 192, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d2relu')
+        net = DenseLayer(net, 10, act=tf.identity, W_init=W_init2, name='output')
         y = net.outputs
 
         ce = tl.cost.cross_entropy(y, y_, name='cost')
@@ -75,35 +52,18 @@ def model_batch_norm(x, y_, reuse, is_train):
     b_init2 = tf.constant_initializer(value=0.1)
     with tf.variable_scope("model", reuse=reuse):
         net = InputLayer(x, name='input')
-
         net = Conv2d(net, 64, (5, 5), (1, 1), padding='SAME', W_init=W_init, b_init=None, name='cnn1')
-        # net = Conv2dLayer(net, act=tf.identity, shape=[5, 5, 3, 64],
-        #             strides=[1, 1, 1, 1], padding='SAME',                 # 64 features for each 5x5x3 patch
-        #             W_init=W_init, b_init=None, name='cnn1')              # output: (batch_size, 24, 24, 64)
         net = BatchNormLayer(net, is_train, act=tf.nn.relu, name='batch1')
         net = MaxPool2d(net, (3, 3), (2, 2), padding='SAME', name='pool1')
-        # net = PoolLayer(net, ksize=[1, 3, 3, 1], strides=[1, 2, 2, 1],
-        #             padding='SAME', pool=tf.nn.max_pool, name='pool1',)   # output: (batch_size, 12, 12, 64)
 
         net = Conv2d(net, 64, (5, 5), (1, 1), padding='SAME', W_init=W_init, b_init=None, name='cnn2')
-        # net = Conv2dLayer(net, act=tf.identity, shape=[5, 5, 64, 64],
-        #             strides=[1, 1, 1, 1], padding='SAME',                 # 64 features for each 5x5 patch
-        #             W_init=W_init, b_init=None, name ='cnn2')             # output: (batch_size, 12, 12, 64)
         net = BatchNormLayer(net, is_train, act=tf.nn.relu, name='batch2')
         net = MaxPool2d(net, (3, 3), (2, 2), padding='SAME', name='pool2')
-        # net = PoolLayer(net, ksize=[1, 3, 3, 1], strides=[1, 2, 2, 1],
-        #            padding='SAME', pool = tf.nn.max_pool, name ='pool2')  # output: (batch_size, 6, 6, 64)
 
         net = FlattenLayer(net, name='flatten')  # output: (batch_size, 2304)
-        net = DenseLayer(
-            net, n_units=384, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d1relu'
-        )  # output: (batch_size, 384)
-        net = DenseLayer(
-            net, n_units=192, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d2relu'
-        )  # output: (batch_size, 192)
-        net = DenseLayer(
-            net, n_units=10, act=tf.identity, W_init=tf.truncated_normal_initializer(stddev=1 / 192.0), name='output'
-        )  # output: (batch_size, 10)
+        net = DenseLayer(net, 384, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d1relu')
+        net = DenseLayer(net, 192, act=tf.nn.relu, W_init=W_init2, b_init=b_init2, name='d2relu')
+        net = DenseLayer(net, 10, act=tf.identity, W_init=W_init2, name='output')
         y = net.outputs
 
         ce = tl.cost.cross_entropy(y, y_, name='cost')