While trying to get the currently bound read buffer, I encountered the following error:

  File "/home/marquesas/PycharmProjects/pygrafjatek/pyge/buffer.py", line 56, in blit
    previous = glGetInteger(GL_READ_FRAMEBUFFER_BINDING)
  File "latebind.pyx", line 32, in OpenGL_accelerate.latebind.LateBind.__call__ (/tmp/pip_build_root/pyopengl-accelerate/src/latebind.c:989)
  File "wrapper.pyx", line 303, in OpenGL_accelerate.wrapper.Wrapper.__call__ (/tmp/pip_build_root/pyopengl-accelerate/src/wrapper.c:6338)
  File "wrapper.pyx", line 88, in OpenGL_accelerate.wrapper.CArgCalculator.c_call (/tmp/pip_build_root/pyopengl-accelerate/src/wrapper.c:2984)
  File "wrapper.pyx", line 69, in OpenGL_accelerate.wrapper.CArgCalculatorElement.c_call (/tmp/pip_build_root/pyopengl-accelerate/src/wrapper.c:2536)
  File "wrapper.pyx", line 64, in OpenGL_accelerate.wrapper.CArgCalculatorElement.c_call (/tmp/pip_build_root/pyopengl-accelerate/src/wrapper.c:2422)
  File "arraydatatype.pyx", line 353, in OpenGL_accelerate.arraydatatype.SizedOutputOrInput.c_call (/tmp/pip_build_root/pyopengl-accelerate/src/arraydatatype.c:7180)
  File "arraydatatype.pyx", line 346, in OpenGL_accelerate.arraydatatype.SizedOutput.c_getSize (/tmp/pip_build_root/pyopengl-accelerate/src/arraydatatype.c:6977)
KeyError: ('Unknown specifier GL_READ_FRAMEBUFFER_BINDING (36010) (lookup = <built-in method __getitem__ of dict object at 0x7fb6692b8e60>)', 1, <OpenGL.platform.baseplatform.glGetIntegerv object at 0x7fb6692b7c30>)

This is exclusive to GL_READ_FRAMEBUFFER_BINDING; trying to read GL_DRAW_FRAMEBUFFER_BINDING works.