from pyqtgraph.Qt import QtCore, QtGui, QtOpenGL
from OpenGL.GL import *
app = QtGui.QApplication([])

class GLTest(QtOpenGL.QGLWidget):
    def __init__(self):
        QtOpenGL.QGLWidget.__init__(self)
        self.makeCurrent()
        print "GL version:", glGetString(GL_VERSION)
        print "MAX_TEXTURE_SIZE:", glGetIntegerv(GL_MAX_TEXTURE_SIZE)
        print "MAX_3D_TEXTURE_SIZE:", glGetIntegerv(GL_MAX_3D_TEXTURE_SIZE)
        print "Extensions:", glGetString(GL_EXTENSIONS)

GLTest()