Linux 如何永久添加 Python 导入路径？
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How do I add a Python import path permanently?
提问by corazza
I know that I can add an import path to Python like this:
我知道我可以像这样向 Python 添加导入路径：
import sys
sys.path.append("/path/to/directory/")
But, when I restart Python, this is gone. I'd find it quite annoying if I had to do this all the time, I'd like to do this once and for all and be done with it.
但是，当我重新启动 Python 时，它就消失了。如果我必须一直这样做，我会觉得很烦人，我想一劳永逸地这样做并完成它。
So, how? Where can I find that file? Or do I need to edit something else? I'm using the latest version of Ubuntu.
又怎样？我在哪里可以找到那个文件？或者我需要编辑其他东西吗？我正在使用最新版本的 Ubuntu。
采纳答案by tuxuday
From man python
从人蟒蛇
~/.pythonrc.py
User-specific initialization file loaded by the user module; not used by default or by most applications.
ENVIRONMENT VARIABLES
PYTHONPATH
Augments the default search path for module files. The format is the same as the shell's $PATH: one or more directory pathnames
separated by colons. Non-existent directories are silently ignored. The default search path is installation dependent, but gen-
erally begins with ${prefix}/lib/python<version> (see PYTHONHOME above). The default search path is always appended to $PYTHON-
PATH. If a script argument is given, the directory containing the script is inserted in the path in front of $PYTHONPATH. The
search path can be manipulated from within a Python program as the variable sys.path .
回答by dmytro
execute following from the shell:
从 shell 执行以下操作：
echo -e "\nexport PYTHONPATH=$PYTHONPATH:/path/to/directory" >> ~/.bashrc
and restart it
并重新启动它
回答by Fredrik Pihl
回答by user747508
You can also use a path file.
您也可以使用路径文件。
If you want to add a module called mymodule to your import path, add the file mymodule.pth to the standard directory for 3rd party modules, usually called dist-packages, or site-packages. On Ubuntu you will probably find it somewhere like
如果要将名为 mymodule 的模块添加到导入路径，请将文件 mymodule.pth 添加到 3rd 方模块的标准目录中，通常称为 dist-packages 或 site-packages。在 Ubuntu 上，您可能会在类似的地方找到它
/usr/local/lib/python2.7/dist-packages
The file mymodule.pth should contain a single line, the directory you want to add to the python import path
文件 mymodule.pth 应包含一行，即您要添加到 python 导入路径的目录
<mymodule.pth>
/path/to/directory/containing/mymodule
Any python modules or packages in the directory will now be importable from the interpreter.
目录中的任何 python 模块或包现在都可以从解释器导入。
