Question

我正在尝试使用GCP's AI Notebooks。但是，当%pip install软件包安装在系统路径之外时，您将无法从shell调用它。试图更改默认路径，但我做错了。不胜感激建议。

这是一个例子：

[1] %pip install kaggle --user
 ... Installing collected packages: kaggle
  WARNING: The script kaggle is installed in '/home/jupyter/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed kaggle-1.5.6
Note: you may need to restart the kernel to use updated packages.
#restarted the kernel
[2] import kaggle
 #works
[3] !pip show kaggle
Name: kaggle
Version: 1.5.6
...
Location: /home/jupyter/.local/lib/python3.5/site-packages
...
[4] !kaggle -v #doesn't work
/bin/sh: 1: kaggle: not found

[5] !echo $PATH
 /usr/local/cuda/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
[6] !export PATH=$PATH:/home/jupyter/.local/lib/python3.5/site-packages 
#no output
[7] !echo $PATH
/usr/local/cuda/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
# path is unchanged

当我在shell中尝试相同的!export行时，路径会更改，并且shell会找到我的可执行文件。当我在笔记本电脑上尝试时，不会。

Answer 1

Pip会告诉您确切的操作方法：

WARNING: The script kaggle is installed in '/home/jupyter/.local/bin' which is not on PATH. Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.

您可以使用以下内容从Jupyter内附加到环境变量：

os.environ['PATH'] += os.pathsep + '/home/jupyter/.local/bin'

之后!kaggle -v应该可以正常工作。

Answer 2

另一种选择是在 jupyter notebook 启动脚本中添加路径 at，这样就不用每次启动 notebook 时都添加这些行：

打开一个终端，然后执行

cd ~/.ipython/profile_default/startup/
nano startup.py

在这个文件中添加

import os 
os.environ['PATH'] += os.pathsep + '/home/jupyter/.local/bin'

退出并保存（ctrl+x），瞧！

GCP AI笔记本％pip安装在PATH之外+无法更改路径

2 个答案: