"TypeError: bytes expected instead of str instance" when using quicktime PNG decoding library on MacOS 10.5 with python3 and pyglet1.2

[GoogleCodeExporter]

Have you tried Pyglet 1.2 alpha1 or the repository code?

What steps will reproduce the problem?
1. On MacOS 10.5, running python3.4 and pyglet 1.2 (pip3 clone of tip)
2. image = pyglet.image.load(filename)

Paste in the traceback or error message:
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/pyglet/image/__init__.py",
line 194, in load
    image = decoder.decode(file, myF)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/pyglet/image/codecs/quicktime.py",
line 151, in decode
    dataref = self._get_data_ref(file, filename)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/pyglet/image/codecs/quicktime.py",
line 123, in _get_data_ref
    self._filename_hold = filename = Str255(filename)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/pyglet/image/codecs/quicktime.py",
line 96, in Str255
    return create_string_buffer(chr(len(value)) + value)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/ctypes/__init__.py",
line 57, in create_string_buffer
    buf.value = init
TypeError: bytes expected instead of str instance

Paste in the output of `python -m pyglet.info`:
Python
------------------------------------------------------------------------------
sys.version: 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 14:13:39) 
[GCC 4.0.1 (Apple Inc. build 5493)]
sys.platform: darwin
sys.maxint: 2147483647
PyObjC not available
os.getcwd(): /Users/luke/Projects/mygame

pyglet
------------------------------------------------------------------------------
pyglet.version: 1.2alpha1
pyglet.__file__: 
/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py
glet/__init__.pyc
pyglet.options['search_local_libs'] = True
pyglet.options['debug_win32'] = False
pyglet.options['xlib_fullscreen_override_redirect'] = False
pyglet.options['debug_trace_args'] = False
pyglet.options['font'] = ('gdiplus', 'win32')
pyglet.options['debug_gl_trace_args'] = False
pyglet.options['debug_trace'] = False
pyglet.options['debug_gl_trace'] = False
pyglet.options['debug_x11'] = False
pyglet.options['debug_media'] = False
pyglet.options['debug_trace_depth'] = 1
pyglet.options['vsync'] = None
pyglet.options['debug_gl'] = True
pyglet.options['darwin_cocoa'] = False
pyglet.options['debug_trace_flush'] = True
pyglet.options['shadow_window'] = True
pyglet.options['xsync'] = True
pyglet.options['debug_font'] = False
pyglet.options['graphics_vbo'] = True
pyglet.options['debug_lib'] = False
pyglet.options['debug_graphics_batch'] = False
pyglet.options['audio'] = ('directsound', 'pulse', 'openal', 'silent')
pyglet.options['debug_texture'] = False

pyglet.window
------------------------------------------------------------------------------
platform: <pyglet.window.Platform object at 0x6169b0>
display: <pyglet.canvas.carbon.CarbonDisplay object at 0x12852d0>
screens[0]: CarbonScreen(x=0, y=0, width=1280, height=800)
config['double_buffer'] = 1
config['stereo'] = 0
config['buffer_size'] = 32
config['aux_buffers'] = 0
config['sample_buffers'] = 0
config['samples'] = 0
config['red_size'] = 8
config['green_size'] = 8
config['blue_size'] = 8
config['alpha_size'] = 8
config['depth_size'] = 24
config['stencil_size'] = 0
config['accum_red_size'] = 0
config['accum_green_size'] = 0
config['accum_blue_size'] = 0
config['accum_alpha_size'] = 0
config['major_version'] = None
config['minor_version'] = None
config['forward_compatible'] = None
config['debug'] = None
context: CarbonContext()

window.context._info
------------------------------------------------------------------------------
gl_info.get_version(): 2.0 NVIDIA-1.5.48
gl_info.get_vendor(): NVIDIA Corporation
gl_info.get_renderer(): NVIDIA GeForce 9400M OpenGL Engine
gl_info.get_extensions():
   GL_APPLE_aux_depth_stencil
   GL_APPLE_client_storage
   GL_APPLE_element_array
   GL_APPLE_fence
   GL_APPLE_float_pixels
   GL_APPLE_flush_buffer_range
   GL_APPLE_flush_render
   GL_APPLE_object_purgeable
   GL_APPLE_packed_pixels
   GL_APPLE_pixel_buffer
   GL_APPLE_specular_vector
   GL_APPLE_texture_range
   GL_APPLE_transform_hint
   GL_APPLE_vertex_array_object
   GL_APPLE_vertex_array_range
   GL_APPLE_vertex_program_evaluators
   GL_APPLE_ycbcr_422
   GL_ARB_depth_texture
   GL_ARB_draw_buffers
   GL_ARB_fragment_program
   GL_ARB_fragment_program_shadow
   GL_ARB_fragment_shader
   GL_ARB_half_float_pixel
   GL_ARB_imaging
   GL_ARB_multisample
   GL_ARB_multitexture
   GL_ARB_occlusion_query
   GL_ARB_pixel_buffer_object
   GL_ARB_point_parameters
   GL_ARB_point_sprite
   GL_ARB_shader_objects
   GL_ARB_shader_texture_lod
   GL_ARB_shading_language_100
   GL_ARB_shadow
   GL_ARB_texture_border_clamp
   GL_ARB_texture_compression
   GL_ARB_texture_cube_map
   GL_ARB_texture_env_add
   GL_ARB_texture_env_combine
   GL_ARB_texture_env_crossbar
   GL_ARB_texture_env_dot3
   GL_ARB_texture_float
   GL_ARB_texture_mirrored_repeat
   GL_ARB_texture_non_power_of_two
   GL_ARB_texture_rectangle
   GL_ARB_transpose_matrix
   GL_ARB_vertex_blend
   GL_ARB_vertex_buffer_object
   GL_ARB_vertex_program
   GL_ARB_vertex_shader
   GL_ARB_window_pos
   GL_ATI_separate_stencil
   GL_ATI_texture_env_combine3
   GL_ATI_texture_float
   GL_ATI_texture_mirror_once
   GL_EXT_abgr
   GL_EXT_bgra
   GL_EXT_bindable_uniform
   GL_EXT_blend_color
   GL_EXT_blend_equation_separate
   GL_EXT_blend_func_separate
   GL_EXT_blend_minmax
   GL_EXT_blend_subtract
   GL_EXT_clip_volume_hint
   GL_EXT_compiled_vertex_array
   GL_EXT_depth_bounds_test
   GL_EXT_draw_buffers2
   GL_EXT_draw_range_elements
   GL_EXT_fog_coord
   GL_EXT_framebuffer_blit
   GL_EXT_framebuffer_multisample
   GL_EXT_framebuffer_object
   GL_EXT_geometry_shader4
   GL_EXT_gpu_program_parameters
   GL_EXT_gpu_shader4
   GL_EXT_multi_draw_arrays
   GL_EXT_packed_depth_stencil
   GL_EXT_rescale_normal
   GL_EXT_secondary_color
   GL_EXT_shadow_funcs
   GL_EXT_stencil_two_side
   GL_EXT_stencil_wrap
   GL_EXT_texture_compression_dxt1
   GL_EXT_texture_compression_s3tc
   GL_EXT_texture_env_add
   GL_EXT_texture_filter_anisotropic
   GL_EXT_texture_integer
   GL_EXT_texture_lod_bias
   GL_EXT_texture_mirror_clamp
   GL_EXT_texture_rectangle
   GL_EXT_texture_sRGB
   GL_EXT_transform_feedback
   GL_IBM_rasterpos_clip
   GL_NV_blend_square
   GL_NV_depth_clamp
   GL_NV_fog_distance
   GL_NV_fragment_program2
   GL_NV_fragment_program_option
   GL_NV_light_max_exponent
   GL_NV_multisample_filter_hint
   GL_NV_point_sprite
   GL_NV_register_combiners
   GL_NV_register_combiners2
   GL_NV_texgen_reflection
   GL_NV_texture_shader
   GL_NV_texture_shader2
   GL_NV_texture_shader3
   GL_NV_vertex_program2_option
   GL_NV_vertex_program3
   GL_SGIS_generate_mipmap
   GL_SGIS_texture_edge_clamp
   GL_SGIS_texture_lod

pyglet.gl.glu_info
------------------------------------------------------------------------------
glu_info.get_version(): 1.3 MacOSX
glu_info.get_extensions():

pyglet.gl.glx_info
------------------------------------------------------------------------------
GLX not available.

pyglet.media
------------------------------------------------------------------------------
audio driver: <pyglet.media.drivers.openal.OpenALDriver object at 0x136b650>

pyglet.media.avbin
------------------------------------------------------------------------------
AVbin not available.

pyglet.media.drivers.openal
------------------------------------------------------------------------------
Library: <CDLL '/System/Library/Frameworks/OpenAL.framework/OpenAL', handle 
11f4f620 at 15adcbd0>
Version: (1, 1)
Extensions:
   ALC_EXT_CAPTURE
   ALC_ENUMERATION_EXT
   ALC_EXT_MAC_OSX
   ALC_EXT_ASA
   ALC_EXT_ASA_DISTORTION
   ALC_EXT_ASA_ROGER_BEEP

pyglet.input.wintab
------------------------------------------------------------------------------
WinTab not available.

Any additional info (platform/language/hardware) that may be relevant?

Original issue reported on code.google.com by dodgyvi...@gmail.com on 7 Jan 2014 at 11:08