在解释器中重新加载(更新)模块文件 [英] reload (update) a module file in the interpreter

问题描述

假设我有这个python脚本script.py，然后通过键入将其加载到解释器中

Let's say I have this python script script.py and I load it in the interpreter by typing

import script

然后输入以下内容来执行我的功能:

and then I execute my function by typing:

script.testFunction(testArgument)

到目前为止，还算不错，但是当我更改script.py时，如果我尝试再次导入，则脚本不会更新.我必须退出解释器，重新启动解释器，然后导入新版本的脚本才能使其正常工作.

OK so far so good, but when I change script.py, if I try to import again the script doesn't update. I have to exit from the interpreter, restart the interpreter, and then import the new version of the script for it to work.

我该怎么办?

推荐答案

您可以发出reload script，但这不会更新现有对象，也不会深入其他模块内部.

You can issue a reload script, but that will not update your existing objects and will not go deep inside other modules.

幸运的是，此问题已通过IPython解决-更好的python shell，支持自动重新加载.

Fortunately this is solved by IPython - a better python shell which supports auto-reloading.

要在IPython中使用自动重载，您必须先键入import ipy_autoreload，或将其永久放置在~/.ipython/ipy_user_conf.py中.

To use autoreloading in IPython, you'll have to type import ipy_autoreload first, or put it permanently in your ~/.ipython/ipy_user_conf.py.

然后运行:

%autoreload 1
%aimport script

%autoreload 1表示，在从提示执行代码之前，将重新加载每个装有%aimport的模块.但是，这将不更新任何现有对象.

%autoreload 1 means that every module loaded with %aimport will be reloaded before executing code from the prompt. This will not update any existing objects, however.

请参见 http://ipython.org/ipython-doc/dev/config/extensions/autoreload.html ，以获得更多有趣的操作.

See http://ipython.org/ipython-doc/dev/config/extensions/autoreload.html for more fun things you can do.

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