Python：如何编辑已安装的包？
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Python: how to edit an installed package?
提问by KJW
I installed some package via pip install something. I want to edit the source code for the package something. Where is it (on ubuntu 12.04) and how do I make it reload each time I edit the source code and run it?
我通过pip install something. 我想编辑包的源代码something。它在哪里（在 ubuntu 12.04 上）以及如何在每次编辑源代码并运行它时重新加载它？
Currently I am editing the source code, and then running python setup.py again and again, which turns out to be quite a hassle.
目前我正在编辑源代码，然后一遍又一遍地运行python setup.py，结果证明很麻烦。
回答by Oz123
You can edit the files installed in /usr/local/lib/python2.7/dist-packages/. Do note that you will have to use sudoor become root.
The better option would be to use virtual environmentfor your development. Then you can edit the files installed with your permissions inside your virtual environment.
您可以编辑安装在/usr/local/lib/python2.7/dist-packages/. 请注意，您必须使用sudo或成为root. 更好的选择是使用虚拟环境进行开发。然后，您可以在虚拟环境中编辑使用您的权限安装的文件。
回答by Leonardo.Z
You should never edit an installed package. Instead, install a forked version of package.
您永远不应该编辑已安装的软件包。相反，安装包的分叉版本。
If you need to edit the code frequently, DO NOT install the package via pip install somethingand edit the code in '.../site_packages/...'
如果您需要经常编辑代码，请勿通过安装包pip install something并在“.../site_packages/...”中编辑代码
Instead, put the source code under a development directory, and install it with
相反，将源代码放在开发目录下，并使用
python setup.py develop
# or
pip install -e path/to/SomePackage
# Or use a vcs at the first place
$ pip install -e git+https://github.com/lakshmivyas/hyde.git#egg=hyde
Put your changes in a version control system, and tell pip to install it explicitly.
将您的更改放在版本控制系统中，并告诉 pip 显式安装它。
Reference: Edit mode
参考： 编辑模式
