是否可以将pdb会话中的变量传递到原始的交互式会话中？ [英] Is it possible to pass a variable out of a pdb session into the original interactive session?

问题描述

我正在使用pdb来检查在ipython会话中调用 run -d 的脚本。
可以绘制一些变量，但是我需要它们在主要的ipython环境中才能做到这一点。所以我正在寻找的是在退出pdb之后，在主要的交互式会话中使一个变量可用的方法。如果您在最上面的框架中设置了一个变量，它似乎在ipython会话中，但这对于任何进一步的框架都不起作用。

code> export 在以下内容中：

  ipdb> myvar = [1,2,3] 
 ipdb> p myvar 
 [1，2，3] 
 ipdb> export myvar 
 ipdb> q 
 
在[66]中：myvar 
输出[66]：[1，2，3] 
  

解决方案

根据ipython的 docs ，还有一个运行？命令从ipython提示符，

执行后，IPython
交互式命名空间使用程序中定义的所有变量更新
（除了 __ name __
和sys.argv）

通过在程序中定义（稍微使用术语），并不意味着任何嵌套函数在运行脚本/模块的 globals（）中找到 - 这意味着。如果你处于任何嵌套状态， globals（）['myvar'] = [1,2,3] 应该仍然可以正常工作，就像你希望的

修改：如果你是e在不同的模块中，您需要在原始的全局变量中设置名称 - 如果需要，在 import sys 之后， sys.modules [originalmodule]。myvar = [1，2，3] 会做你想要的。

I am using pdb to examine a script having called run -d in an ipython session. It would be useful to be able to plot some of the variables but I need them in the main ipython environment in order to do that.

So what I am looking for is some way to make a variable available back in the main interactive session after I quit pdb. If you set a variable in the topmost frame it does seem to be there in the ipython session, but this doesn't work for any frames further down.

Something like export in the following:

ipdb> myvar = [1,2,3]
ipdb> p myvar
[1, 2, 3]
ipdb> export myvar
ipdb> q

In [66]: myvar
Out[66]: [1, 2, 3]

解决方案

Per ipython's docs, and also a run? command from the ipython prompt,

after execution, the IPython interactive namespace gets updated with all variables defined in the program (except for __name__ and sys.argv)

By "defined in the program" (a slightly sloppy use of terms), it doesn't mean "anywhere within any nested functions found there" -- it means "in the globals() of the script/module you're running. If you're within any kind of nesting, globals()['myvar'] = [1,2,3] should still work fine, just like your hoped-for export would if it existed.

Edit: If you're in a different module, you need to set the name in the globals of your original one -- after an import sys if needed, sys.modules["originalmodule"].myvar = [1, 2, 3] will do what you desire.

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