AttributeError: module 'keras.preprocessing.sequence' has no attribute 'pad_sequences'

这个错误通常是因为您使用的 Keras 版本不同于您的代码所期望的版本。`pad_sequences` 是 Keras 中的一个函数，用于填充序列以使其具有相同的长度。

如果您使用的是 Keras 2.1.2 或更早版本，则需要从 Keras 序列模块中导入 pad_sequences 函数。例如：

from keras.preprocessing import sequence
x_train = sequence.pad_sequences(x_train, maxlen=maxlen)

如果您使用的是 Keras 2.2.4 或更高版本，则需要从 keras.preprocessing.sequence 模块中导入 pad_sequences 函数。例如：

from keras.preprocessing.sequence import pad_sequences
x_train = pad_sequences(x_train, maxlen=maxlen)

请确保您正在使用与代码兼容的 Keras 版本。

相关问题

module 'keras.preprocessing.sequence' has no attribute 'pad_sequences'

This error might occur when you are trying to use the `pad_sequences` function from the `keras.preprocessing.sequence` module, but the function is not found. This could be due to a few reasons:

1. Incorrect import statement: Make sure you are importing the `pad_sequences` function from the correct module. The correct import statement should be:

   from keras.preprocessing.sequence import pad_sequences

2. Outdated version of Keras: `pad_sequences` is a function that was introduced in Keras version 2.1.0. If you are using an older version of Keras, you will not be able to use this function. Try updating Keras to the latest version.

3. Incorrect installation: If you have recently installed Keras, it's possible that the installation was not successful or complete. Try reinstalling Keras and make sure all dependencies are installed correctly.

4. Typo in function name: It's possible that you have misspelled the function name as "pad_sequence" instead of "pad_sequences". Double-check the spelling in your code.

If none of these solutions work, try searching for other possible causes or consult the Keras documentation or community for further help.

Building prefix dict from the default dictionary ... Loading model from cache C:\Users\26316\AppData\Local\Temp\jieba.cache Loading model cost 0.617 seconds. Prefix dict has been built successfully. Traceback (most recent call last): File "E:\PycharmProjects\neural network learning\3\emotionLSTM.py", line 38, in <module> pn['sent'] = list(preprocessing.sequence.pad_sequences(pn['sent'], maxlen=maxlen, padding='pre', truncating='pre')) AttributeError: module 'keras.preprocessing.sequence' has no attribute 'pad_sequences' Pad sequences (samples x time) Process finished with exit code 1

根据您提供的错误信息，看起来是在使用Keras的preprocessing.sequence模块时出现了问题。具体地，它指出'keras.preprocessing.sequence'没有'pad_sequences'属性。

这可能是因为您使用的Keras版本较旧，而'pad_sequences'是较新版本中的一个功能。您可以尝试更新Keras版本以解决此问题。

您可以使用以下命令在PyCharm中更新Keras：

pip install --upgrade keras

请尝试更新Keras重新运行代码，看看问题是否解决了。如果问题仍然存在，请提供更多的代码和错误信息，以便我能够更好地帮助您。