使用 C++ 逐行执行 python 脚本Python API
我的目标最终是执行一个 python 脚本，一次一行操作我的 C++ 程序中的值，并在 python 脚本中的语句之间返回执行到我的 C++ 程序。现在，我试图一次一行地向 python 解释器提供我的脚本。但它需要一个上下文，而我不知道如何构建它。任何人都可以给我指出一些好的教程（文档对此不是很好）。
我选择了最能回答我的问题的答案，但我相信这对于某些应用程序来说可能不足以控制。 适用于这些应用程序的答案可能涉及 Python API 中的较低级别调用。如果您有可以对执行进行更多控制的答案，请回答该问题。
我在这个问题之后又问了另一个问题，因为后来我遇到了不同的问题，这些问题是密切相关的。链接：Python C API - 停止执行（稍后继续）
My goal is ultimately to execute a python script that manipulates values in my C++ program, one line at a time, returning execution to my C++ program between statements in the python script. Right now, I'm been attempting to feed the python interpreter my script one line at a time. But it wants a context, and I have no idea how to construct that. Can anyone point me to some good tutorials (the documentation is not very good for this).
I chose the answer that most closely answered my question, but I believe this may not be enough control for some applications.
An answer that works for those applications might involve lower-level calls in the Python API. Please answer the question if you have an answer that grants more control over execution.
I Asked another question following this one, because I encountered different problems afterwards which are very closely related. Link: Python C API - Stopping Execution (and continuing it later)
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我认为一次输入一行脚本会很困难。查看 sys.settrace() 来设置在每行执行时调用的函数。您还可以使用
PyEval_SetTrace在 C API 中设置它，形式略有不同。I think it will be difficult to feed a script one line at a time. Look into
sys.settrace()to set a function that is invoked at each line of execution. You can also set it in the C API usingPyEval_SetTrace, in a slightly different form.我不能 100% 确定我完全理解你的目标，但大约 8 个月前我想做类似的事情。我希望能够从 python 脚本驱动我的 C++ 应用程序。我用的是win32、Qt、gcc。事实证明，现在 gdb（gcc 的调试器）可以通过 python 编写脚本。我花了很多时间阅读和几天的工作，但效果很好。我不必在我的 C++ 源代码中添加任何额外的代码！
I am not 100% sure that I fully understand your goal, but some 8 months ago I wanted to do something similar. I wanted to be able to drive my c++ application from python scripts. I was on win32, Qt, gcc. It turns out that these days gdb, the debugger for gcc, can be scripted via python. It took me a lot of reading and few days of work, but it worked well. I did not have to add any extra code into my c++ sources!
好吧，我告诉你......我认为最好的办法是将你的 python 脚本转换为 C++ 应用程序。这样您就可以将有效且有用的代码嵌入到源代码中。
如果你的 c 应用程序不是那么大，也许你更喜欢为 python 做一个 c 扩展并将 python 代码转到主应用程序..
无论哪种方式，我都会在 Cython 中完成。
如果您愿意，可以使用以下问题来了解如何完成这项工作： Convert Python 程序到 C/C++ 代码？
well i tell you what.. i think the best thing to do is to convert your python script to c++ app. this how you'll have working and useful code to embed in your source.
if your c app is not that big, maybe you prefer to make a c-extension for python and turn the python code to the main app..
either way, i would do it in Cython.
you can use the following question to understand how to do this job if you'd like: Convert Python program to C/C++ code?