【发布时间】:2019-08-09 11:54:48
【问题描述】:
执行以下代码时出现上述错误。 我正在尝试解决以下有关 tensorflow 神经网络实现的教程。 https://www.datacamp.com/community/tutorials/tensorflow-tutorial
def load_data(data_directory):
directories = [d for d in os.listdir(data_directory)
if os.path.isdir(os.path.join(data_directory, d))]
labels = []
images = []
for d in directories:
label_directory = os.path.join(data_directory, d)
file_names = [os.path.join(label_directory, f)
for f in os.listdir(label_directory)
if f.endswith(".ppm")]
for f in file_names:
images.append(skimage.data.imread(f))
labels.append(int(d))
return images, labels
import os
import skimage
from skimage import transform
from skimage.color import rgb2gray
import numpy as np
import keras
from keras import layers
from keras.layers import Dense
ROOT_PATH = "C://Users//Jay//AppData//Local//Programs//Python//Python37//Scriptcodes//BelgianSignals"
train_data_directory = os.path.join(ROOT_PATH, "Training")
test_data_directory = os.path.join(ROOT_PATH, "Testing")
images, labels = load_data(train_data_directory)
# Print the `labels` dimensions
print(np.array(labels))
# Print the number of `labels`'s elements
print(np.array(labels).size)
# Count the number of labels
print(len(set(np.array(labels))))
# Print the `images` dimensions
print(np.array(images))
# Print the number of `images`'s elements
print(np.array(images).size)
# Print the first instance of `images`
np.array(images)[0]
images28 = [transform.resize(image, (28, 28)) for image in images]
images28 = np.array(images28)
images28 = rgb2gray(images28)
# Import `tensorflow`
import tensorflow as tf
# Initialize placeholders
x = tf.placeholder(dtype = tf.float32, shape = [None, 28, 28])
y = tf.placeholder(dtype = tf.int32, shape = [None])
# Flatten the input data
images_flat = tf.keras.layers.flatten(x)
# Fully connected layer
logits = tf.contrib.layers.dense(images_flat, 62, tf.nn.relu)
# Define a loss function
loss = tf.reduce_mean(tf.nn.sparse_softmax_cross_entropy_with_logits(labels = y,
logits = logits))
# Define an optimizer
train_op = tf.train.AdamOptimizer(learning_rate=0.001).minimize(loss)
# Convert logits to label indexes
correct_pred = tf.argmax(logits, 1)
# Define an accuracy metric
accuracy = tf.reduce_mean(tf.cast(correct_pred, tf.float32))
一开始,我在教程中使用了 tf.layers.flatten(x)。但是,它将在未来的版本中贬值。所以按照建议添加 keras。
我在 IDLE 控制台中得到以下输出。
重新启动:C:\Users\Jay\AppData\Local\Programs\Python\Python37\Scriptcodes\SecondTensorFlow.py 使用 TensorFlow 后端。
警告(来自警告模块): 文件“C:\Users\Jay\AppData\Local\Programs\Python\Python37\lib\site-packages\skimage\transform_warps.py”,第 105 行 warn("默认模式,'constant',将在 " 用户警告:默认模式“常量”将在 skimage 0.15 中更改为“反射”。
警告(来自警告模块): 文件“C:\Users\Jay\AppData\Local\Programs\Python\Python37\lib\site-packages\skimage\transform_warps.py”,第 110 行 warn("在 skimage 0.15 到 " 用户警告:在 skimage 0.15 中默认启用抗锯齿功能,以避免在对图像进行下采样时出现锯齿现象。
Traceback(最近一次调用最后一次): 文件“C:\Users\Jay\AppData\Local\Programs\Python\Python37\Scriptcodes\SecondTensorFlow.py”,第 64 行,在
images_flat = tf.python.keras.layers.flatten(x)
AttributeError: 模块 'tensorflow' 没有属性 'python'
我正在使用, Keras 版本 2.2.4 TensorFlow 1.13.1 版
【问题讨论】:
-
在这里使用
Flatten大写F:- images_flat = tf.keras.layers.flatten(x) -
不,它不起作用。它因以下错误而失败。
-
回溯(最近一次调用最后):文件“*\SecondTensorFlow.py”,第 63 行,在
images_flat = tf.keras.layers.Flatten(x) 文件“C:\Users \Jay\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow\python\keras\layers\core.py”,第 539 行,在 init self.data_format = conv_utils。 normalize_data_format(data_format) 文件“C:\Users\Jay\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow\python\keras\utils\conv_utils.py”,第 188 行,采用 normalize_data_format data_format = value .lower() AttributeError: 'Tensor' object has no attribute 'lower' -
没有“tf.python”这样的东西;你从哪里得到这个代码?
标签: python python-3.x tensorflow keras