python - 在 GTK 应用程序中嵌入 python 程序(C 语言)

Question

我正在编写一个 GTK+ GUI(C 语言)应用程序，我之前已经快速开发了一个执行某些任务的 pygtk GUI 应用程序。现在，我不再用 C 和 GTK+ 重写整个 Pygtk GUI 及其计算例程，而是希望在 C GUI 中按一个按钮并启动 python GUI。

在最初的尝试中，我尝试从 C 代码调用 python GUI，但它在运行时崩溃，它提示 GTK 导入和段错误。

请注意，Python GUI 独立应用程序运行良好(独立文件的名称是 FPG.py)。

那么如何有效地将模块和库从 python 导入到 C/C++ 中

这就是我所做的:

#include <Python.h>

int
main(int argc, char *argv[])
{
 Py_SetProgramName(argv[0]);  /* optional but recommended */
 Py_Initialize();

 FILE *fp      = fopen ("FPG.py",   "r+");
 PyRun_SimpleString("#!/usr/bin/python2.7");
 PyRun_SimpleString("import sys ");
 PyRun_SimpleString("from scipy.integrate import odeint ");
 PyRun_SimpleString("import math ");
 PyRun_SimpleString("import csv ");
 PyRun_SimpleString("from decimal import *");
 PyRun_SimpleString("from math import pi ");
 PyRun_SimpleString("import numpy as np");
 PyRun_SimpleString("from datetime import datetime");
 PyRun_SimpleString("from time import mktime ");
 PyRun_SimpleString("from gi.repository import Gtk, Gio");
 PyRun_SimpleString("import os");


 PyRun_SimpleString("from datetime import datetime");
 PyRun_SimpleString("from time import mktime");

 // the actual file  
 PyRun_SimpleFile(fp,"FPG.py");
 Py_Finalize();
 return 0;
}

我编译程序如下(我知道它是 C++ 编译器):

g++ $(python-config --cflags) -o simple $(python-config --ldflags) ./simple.cpp

该程序即使编译，在运行时也会崩溃，并显示以下输出可执行文件的摘录。

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib64/python2.7/site-packages/gi/importer.py", line 68, in load_module
    dynamic_module._load()
  File "/usr/lib64/python2.7/site-packages/gi/module.py", line 291, in _load
    overrides_modules = __import__('gi.overrides', fromlist=[self._namespace])
  File "/usr/lib64/python2.7/site-packages/gi/overrides/Gtk.py", line 1502, in <module>
    initialized, argv = Gtk.init_check(sys.argv)
AttributeError: 'module' object has no attribute 'argv'

(process:25913): Gtk-CRITICAL **: _gtk_style_cascade_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed

(process:25913): Gtk-CRITICAL **: _gtk_style_provider_private_lookup: assertion `GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed

(process:25913): Gtk-CRITICAL **: _gtk_css_lookup_resolve: assertion `GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed

(process:25913): Gtk-CRITICAL **: _gtk_css_rgba_value_get_rgba: assertion `rgba->class == &GTK_CSS_VALUE_RGBA' failed

(process:25913): Gtk-CRITICAL **: _gtk_style_provider_private_lookup: assertion `GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed

(process:25913): Gtk-CRITICAL **: _gtk_css_lookup_resolve: assertion `GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed

(process:25913): Gtk-CRITICAL **: _gtk_css_rgba_value_get_rgba: assertion `rgba->class == &GTK_CSS_VALUE_RGBA' failed

(process:25913): Gtk-CRITICAL **: _gtk_css_rgba_value_get_rgba: assertion `rgba->class == &GTK_CSS_VALUE_RGBA' failed


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Answer 1

您输入的 import numpy as np 错过了 i。此外，您还必须为 argv 导入 sys 模块。