问基于此C++现代OpenGL教程，如何让PyOpenGL与wxPython上下文一起工作？

EN

import wx
from wx import glcanvas
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
from OpenGL.GL.ARB.shader_objects import *
from OpenGL.GL.ARB.fragment_shader import *
from OpenGL.GL.ARB.vertex_shader import *
import numpy as np

vertexSource = """
#version 130
in vec2 position;
void main()
{
    gl_Position = vec4(position, 0.0, 1.0);
}
"""
fragmentSource = """
#version 130
out vec4 outColor;
void main()
{
    outColor = vec4(1.0, 1.0, 1.0, 1.0);
}
"""

class OpenGLCanvas(glcanvas.GLCanvas):
    def __init__(self, parent):
        glcanvas.GLCanvas.__init__(self, parent, -1, size=(640, 480))
        self.init = False
        self.context = glcanvas.GLContext(self) 

    self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
    self.Bind(wx.EVT_PAINT, self.OnPaint)

def OnEraseBackground(self, event):
    pass # Do nothing, to avoid flashing on MSW.

def OnPaint(self, event):
    dc = wx.PaintDC(self)
    self.SetCurrent(self.context)
    if not self.init:
        self.InitGL()
        self.init = True
    self.OnDraw()

def InitGL(self):

    # Vertex Input
    ## Vertex Array Objects
    vao = glGenVertexArrays(1)
    glBindVertexArray(vao)

    ## Vertex Buffer Object
    vbo = glGenBuffers(1) # Generate 1 buffer

    vertices = np.array([0.0,  0.5, 0.5, -0.5, -0.5, -0.5], dtype=np.float32)

    ## Upload data to GPU
    glBindBuffer(GL_ARRAY_BUFFER, vbo)
    glBufferData(GL_ARRAY_BUFFER, vertices.nbytes, vertices, GL_STATIC_DRAW)

    # Compile shaders and combining them into a program
    ## Create and compile the vertex shader
    vertexShader = glCreateShader(GL_VERTEX_SHADER)
    glShaderSource(vertexShader, vertexSource)
    glCompileShader(vertexShader)

    ## Create and compile the fragment shader
    fragmentShader = glCreateShader(GL_FRAGMENT_SHADER)
    glShaderSource(fragmentShader, fragmentSource)
    glCompileShader(fragmentShader)

    ## Link the vertex and fragment shader into a shader program
    shaderProgram = glCreateProgram()
    glAttachShader(shaderProgram, vertexShader)
    glAttachShader(shaderProgram, fragmentShader)
    glBindFragDataLocation(shaderProgram, 0, "outColor")
    glLinkProgram(shaderProgram)
    glUseProgram(shaderProgram)

    # Making the link between vertex data and attributes
    posAttrib = glGetAttribLocation(shaderProgram, "position")
    glEnableVertexAttribArray(posAttrib)
    glVertexAttribPointer(posAttrib, 2, GL_FLOAT, GL_FALSE, 0, 0)

def OnDraw(self):
    # Set clear color
    glClearColor(0.0, 0.0, 0.0, 1.0)
#Clear the screen to black
    glClear(GL_COLOR_BUFFER_BIT)

    # draw six faces of a cube
    glDrawArrays(GL_TRIANGLES, 0, 3)

    self.SwapBuffers()

class Frame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="Hello World", size=(640,480))
        canvas = OpenGLCanvas(self)

app = wx.App()
frame = Frame()
frame.Show()
app.MainLoop()