将目录永久添加到PYTHONPATH？

本文翻译自：Permanently add a directory to PYTHONPATH?

Whenever I use

sys.path.append

, the new directory will be added.

每当我使用

sys.path.append

，都会添加新目录。

However, once I close python, the list will revert to the previous (default?) values.

但是，一旦我关闭python，列表将恢复为以前的值（默认值）。

How do I permanently add a directory to

PYTHONPATH

?

如何将目录永久添加到

PYTHONPATH

？

#1楼

参考：https://stackoom.com/question/EH3g/将目录永久添加到PYTHONPATH

#2楼

Instead of manipulating

PYTHONPATH

you can also create a path configuration file .

除了操纵

PYTHONPATH

您还可以创建路径配置文件 。

First find out in which directory Python searches for this information:

首先找出Python在哪个目录中搜索此信息：

python -m site --user-site
           

For some reason this doesn't seem to work in Python 2.7.

由于某些原因，这似乎在Python 2.7中不起作用。

There you can use:

在那里您可以使用：

python -c 'import site; site._script()' --user-site
           

Then create a

.pth

file in that directory containing the path you want to add (create the directory if it doesn't exist).

然后在该目录中创建一个

.pth

文件，其中包含要添加的路径（如果该目录不存在，则创建该目录）。

For example:

例如：

# find directory
SITEDIR=$(python -m site --user-site)

# create if it doesn't exist
mkdir -p "$SITEDIR"

# create new .pth file with our path
echo "$HOME/foo/bar" > "$SITEDIR/somelib.pth"
           

#3楼

In case anyone is still confused - if you are on a Mac, do the following:

如果仍然有人困惑-如果您使用的是Mac，请执行以下操作：

1. Open up Terminal 打开终端
2. Type

   open .bash_profile

   输入

   open .bash_profile

3. In the text file that pops up, add this line at the end:

   export PYTHONPATH=$PYTHONPATH:foo/bar

   在弹出的文本文件中，在末尾添加以下行：

   export PYTHONPATH=$PYTHONPATH:foo/bar

4. Save the file, restart the Terminal, and you're done 保存文件，重新启动终端，然后完成

#4楼

On linux you can create a symbolic link from your package to a directory of the PYTHONPATH without having to deal with the environment variables.

在Linux上，您可以创建从软件包到PYTHONPATH目录的符号链接，而不必处理环境变量。

Something like:

就像是：

ln -s /your/path /usr/lib/pymodules/python2.7/
           

#5楼

For me it worked when I changed the

.bash_profile

file.

对我来说，当我更改

.bash_profile

文件时，它起作用了。

Just changing

.bashrc

file worked only till I restarted the shell.

仅更改

.bashrc

文件才有效，直到重新启动外壳程序为止。

For python 2.7 it should look like:

对于python 2.7，它应如下所示：

export PYTHONPATH="$PYTHONPATH:/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python"
           

at the end of the

.bash_profile

file.

在

.bash_profile

文件的末尾。

#6楼

This works on Windows

这适用于Windows

1. On Windows, with Python 2.7 go to the Python setup folder. 在Windows上，对于Python 2.7，请转到Python设置文件夹。
2. Open Lib/site-packages. 打开库/站点包。
3. Add an example.pth empty file to this folder. 将example.pth空文件添加到此文件夹。
4. Add the required path to the file, one per each line. 将所需的路径添加到文件，每行一个。

Then you'll be able to see all modules within those paths from your scripts.

然后，您将能够从脚本中查看这些路径内的所有模块。