Bytes filenames should be accepted with Python 3 #258
Description
Bytes filenames should be accepted with Python 3. They are accepted with Python 2. An application might want to use bytes filenames to avoid problems with undecodable characters.
$ python2.7 -c 'import PIL.Image; PIL.Image.open(b"file.png")'
$ python3.3 -c 'import PIL.Image; PIL.Image.open(b"file.png")'
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib64/python3.3/site-packages/PIL/Image.py", line 1993, in open
prefix = fp.read(16)
AttributeError: 'bytes' object has no attribute 'read'
Also there is NameError in line 491 of PIL/JpegImagePlugin.py with Python 3.