import sys, pygame
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
from pygame.locals import *

if __name__ == "__main__":
	glutInit(sys.argv)
	width, height = (640, 480)
	pygame.init()
	pygame.display.set_mode((width, height), OPENGL | DOUBLEBUF)
	
	glMatrixMode(GL_PROJECTION)
	glLoadIdentity()
	gluPerspective(90.0, width/float(height), 1.0, 100.0)
	glMatrixMode(GL_MODELVIEW)
	glEnable(GL_DEPTH_TEST)
	
	v_sh = glCreateShader(GL_VERTEX_SHADER)
	f_sh = glCreateShader(GL_FRAGMENT_SHADER)
	glShaderSource(v_sh, '''
	void main() {
    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
	}
	''')
	glCompileShader(v_sh)
	print glGetShaderInfoLog(v_sh)	
	if not glGetShaderiv(v_sh, GL_COMPILE_STATUS):
    glDeleteShader(v_sh)
    sys.exit()
    
	glShaderSource(f_sh, '''
	void main() {
    gl_FragColor = vec4(0.6, 0.1, 0.1, 1.0);
	}
	''')
	glCompileShader(f_sh)
	print glGetShaderInfoLog(f_sh)
	if not glGetShaderiv(f_sh, GL_COMPILE_STATUS):
    glDeleteShader(f_sh)
    sys.exit()
    
	program = glCreateProgram()
	glAttachShader(program, v_sh)
	glAttachShader(program, f_sh)
	glLinkProgram(program)
	print glGetProgramInfoLog(program)
	
	quit = False
	angle = 0
	while not quit:
    for e in pygame.event.get():
    	if e.type in (QUIT, KEYDOWN):
        quit = True
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
    glLoadIdentity()
    glTranslate(0.0, 0.0, -3.5)
    glRotate(angle, 0.0, 1.0, 0.0)
    glRotate(angle, 0.0, 0.0, 1.0)
    glutSolidTeapot(1.0)
    angle += 0.1
    pygame.display.flip()

Vertex shader was successfully compiled to run on hardware.

Fragment shader was successfully compiled to run on hardware.
Fragment shader(s) failed to link,  vertex shader(s) failed to link. 
ERROR: 2:1: 'v' : syntax error parse error
ERROR:  compilation errors.  No code generated.

ERROR: 2:1: 'v' : syntax error parse error
ERROR:  compilation errors.  No code generated.

Vertex shader was successfully compiled to run on hardware.

Fragment shader was successfully compiled to run on hardware.
Vertex shader(s) failed to link, no fragment shader(s) defined.