没有模块找到Keras

Question

按照代码，当我试图安装keras时，它告诉已经存在，下一行告诉没有模块找到keras。

代码第1行:

!pip install keras

结果:

Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: keras in /usr/local/lib/python3.8/dist-packages (2.7.0)
WARNING: You are using pip version 21.3.1; however, version 22.0.4 is available.
You should consider upgrading via the '/usr/bin/python -m pip install --upgrade pip' command.

第二行代码:

np.random.seed(30)
import random as rn
rn.seed(30)
from keras import backend as K
import tensorflow as tf
tf.set_random_seed(30)

错误提示:

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-2-52c6b868b0a2> in <module>
      2 import random as rn
      3 rn.seed(30)
----> 4 from keras import backend as K
      5 import tensorflow as tf
      6 tf.set_random_seed(30)
ModuleNotFoundError: No module named 'keras'

Answer 1

模块可能不在您的PATH上，它决定可以访问哪些模块。要添加它，请运行:

export PATH="/usr/local/lib/python3.8/dist-packages:$PATH"

在您的终端。该命令将PATH变量设置为keras的安装目录，然后是:，然后是PATH变量的内容。