19 October 2009 6 comments Python
One really annoying thing about PIL is that it's importable as Image and PIL. It leads me and other newbies to think if it's different. I don't want choices:
Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41)
[GCC 4.3.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import PIL
>>> import Image
>>> ?
When PIL/Image is put into standard lib, can we call the module: imaging?
At least on my machine these two are not the same:
In [14]: import PIL
In [15]: PIL.__file__
Out[15]: '/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/PIL/__init__.pyc'
In [16]: import Image
In [17]: Image.__file__
Out[17]: '/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/PIL/Image.pyc'
In [18]: dir(PIL)
Out[18]: ['__builtins__', '__doc__', '__file__', '__name__', '__path__']
In [19]: dir(Image)
Out[19]:
['ADAPTIVE',
'AFFINE',
'ANTIALIAS',
'BICUBIC',
'BILINEAR',
'CONTAINER',
'CUBIC',
'DEBUG',
'EXTENSION',
'EXTENT',
'FLIP_LEFT_RIGHT',
'FLIP_TOP_BOTTOM',
'FLOYDSTEINBERG',
'ID',
'Image',
'ImageMode',
'ImagePalette',
'IntType',
'LINEAR',
'MESH',
'MIME',
'MODES',
'NEAREST',
'NONE',
'NORMAL',
'OPEN',
'ORDERED',
'PERSPECTIVE',
'QUAD',
'RASTERIZE',
'ROTATE_180',
'ROTATE_270',
'ROTATE_90',
'SAVE',
'SEQUENCE',
'StringType',
'TupleType',
'UnicodeStringType',
'VERSION',
'WEB',
'_E',
'_ENDIAN',
'_ImageCrop',
'_MAPMODES',
'_MODEINFO',
'_MODE_CONV',
'__builtins__',
'__doc__',
'__file__',
'__name__',
'_conv_type_shape',
'_getdecoder',
'_getencoder',
'_getscaleoffset',
'_imaging_not_installed',
'_initialized',
'_showxv',
'_wedge',
'blend',
'composite',
'core',
'eval',
'fromarray',
'frombuffer',
'fromstring',
'getmodebandnames',
'getmodebands',
'getmodebase',
'getmodetype',
'init',
'isDirectory',
'isImageType',
'isNumberType',
'isSequenceType',
'isStringType',
'isTupleType',
'merge',
'new',
'open',
'os',
'preinit',
'register_extension',
'register_mime',
'register_open',
'register_save',
'string',
'sys',
'warnings']
I believe this is the real problem:
>>> from PIL import Image as A
>>> import Image as B
>>> B.__file__ == A.__file__
True
zen of python
"There should be one-- and preferably only one --obvious way to do it"
The PIL API is far too horrible to put in the standard library - are they really considering this? Just because it's the only library available for this sort of thing doesn't mean it should end up included as standard.
Fair points. I'm not saying they are but IF they do I have an opinion about the naming.
Whatever it is, it better be consistent.
What about PythonMagick, using it for years despite the bugs in combination with PIL and numpy. The buglist gains speed according to my inbox so there is slight hope on better image processing routines in Python.