[Numpy-discussion] [OT] any image io module that works with python3?

Nadav Horesh nadavh at visionsense.com
Sat Mar 12 15:47:39 EST 2011 

After the  replacement of ö with o, the installation went without errors, but:

nadav at nadav_home ~ $ python3
Python 3.1.3 (r313:86834, Feb 25 2011, 11:08:33) 
[GCC 4.4.4] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import _imaging
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: /usr/lib64/python3.1/site-packages/PIL/_imaging.so: undefined symbol: Py_FindMethod

 Thank you,

    Nadav.
________________________________________
From: numpy-discussion-bounces at scipy.org [numpy-discussion-bounces at scipy.org] On Behalf Of Christoph Gohlke [cgohlke at uci.edu]
Sent: 12 March 2011 21:49
To: numpy-discussion at scipy.org
Subject: Re: [Numpy-discussion] [OT] any image io module that   works   with    python3?

On 3/12/2011 8:45 AM, Nadav Horesh wrote:
> I forgot to mention that I work on linux (gentoo x86-64).Here are my achievements till now:
>
> 1. PythonMagick: Needs boost which I do not have it avaiable on python3
Boost works on Python 3.1. You might need to compile it.
> 2. Pygame: I have the stable version(1.9.1) should it work?
You need the developer version from svn.
> 3. FreeImage: I installed FreeImagePy on python3, but it doesn't work yet.
FreeImagePy is unmaintained, does not work on Python 3, and has problems
on 64 bit platforms. Just wrap the functions you need in ctypes.
> 4. PIL: I patched setup.py and map.c so "python3 setup.py build" is working, but:
Try replace "Hans Häggström" with "Hans Haggstrom" in PIL/WalImageFile.py

Christoph

>
> nadav at nadav_home /dev/shm/PIL-1.1.7-py3 $ sudo python3.1  setup.py install
> /usr/lib64/python3.1/distutils/dist.py:259: UserWarning: Unknown distribution option: 'ext_comp_args'
>    warnings.warn(msg)
> running install
> running build
> running build_py
> running build_ext
> --------------------------------------------------------------------
> PIL 1.1.7 SETUP SUMMARY
> --------------------------------------------------------------------
> version       1.1.7
> platform      linux2 3.1.3 (r313:86834, Feb 25 2011, 11:08:33)
>                [GCC 4.4.4]
> --------------------------------------------------------------------
> --- TKINTER support available
> --- JPEG support available
> --- ZLIB (PNG/ZIP) support available
> --- FREETYPE2 support available
> --- LITTLECMS support available
>
> .
> .
> .
>
> byte-compiling /usr/lib64/python3.1/site-packages/PIL/WalImageFile.py to WalImageFile.pyc
> Traceback (most recent call last):
>    File "setup.py", line 520, in<module>
>      setup(*(), **configuration)  # old school :-)
>    File "/usr/lib64/python3.1/distutils/core.py", line 149, in setup
>      dist.run_commands()
>    File "/usr/lib64/python3.1/distutils/dist.py", line 919, in run_commands
>      self.run_command(cmd)
>    File "/usr/lib64/python3.1/distutils/dist.py", line 938, in run_command
>      cmd_obj.run()
>    File "/usr/lib64/python3.1/distutils/command/install.py", line 592, in run
>      self.run_command(cmd_name)
>    File "/usr/lib64/python3.1/distutils/cmd.py", line 315, in run_command
>      self.distribution.run_command(command)
>    File "/usr/lib64/python3.1/distutils/dist.py", line 938, in run_command
>      cmd_obj.run()
>    File "/usr/lib64/python3.1/distutils/command/install_lib.py", line 98, in run
>      self.byte_compile(outfiles)
>    File "/usr/lib64/python3.1/distutils/command/install_lib.py", line 135, in byte_compile
>      dry_run=self.dry_run)
>    File "/usr/lib64/python3.1/distutils/util.py", line 560, in byte_compile
>      compile(file, cfile, dfile)
>    File "/usr/lib64/python3.1/py_compile.py", line 137, in compile
>      codestring = f.read()
>    File "/usr/lib64/python3.1/codecs.py", line 300, in decode
>      (result, consumed) = self._buffer_decode(data, self.errors, final)
> UnicodeDecodeError: 'utf8' codec can't decode byte 0xe4 in position 1909: invalid continuation byte
>
>
>
> Any idea on how to correct it? Any elegant way to avoid byte compiling?
>
>    Nadav
>
>
> ________________________________________
> From: numpy-discussion-bounces at scipy.org [numpy-discussion-bounces at scipy.org] On Behalf Of Zachary Pincus [zachary.pincus at yale.edu]
> Sent: 12 March 2011 14:35
> To: Discussion of Numerical Python
> Subject: Re: [Numpy-discussion] [OT] any image io module that works with        python3?
>
> Here's a ctypes interface to FreeImage that I wrote a while back and
> was since cleaned up (and maintained) by the scikits.image folk:
>
> https://github.com/stefanv/scikits.image/blob/master/scikits/image/io/_plugins/freeimage_plugin.py
>
> If it doesn't work out of the box on python 3, then it should be
> pretty simple to fix.
>
> Zach
>
>
>
> On Mar 12, 2011, at 4:40 AM, Christoph Gohlke wrote:
>
>>
>>
>> On 3/12/2011 1:08 AM, Nadav Horesh wrote:
>>> Having numpy, scipy, and matplotlib working reasonably with
>>> python3, a
>>> major piece of code I miss for a major python3 migration is an
>>> image IO.
>>> I found that pylab's imread works fine for png image, but I need to
>>> read
>>> all the other image format as well as png and jpeg output.
>>> Any hints (including advices how easyly construct my own module) are
>>> appreciated.
>>> Nadav.
>>>
>>
>> On Windows, PIL (private port at
>> <http://www.lfd.uci.edu/~gohlke/pythonlibs/#pil>), PythonMagick
>> <http://www.imagemagick.org/download/python/>, and pygame 1.9.2pre
>> <http://www.pygame.org>  are working reasonably well for image IO. Also
>> the FreeImage library<http://freeimage.sourceforge.net/>  is easy to
>> use
>> with ctypes<http://docs.python.org/py3k/library/ctypes.html>.
>>
>> Christoph
>> _______________________________________________
>> NumPy-Discussion mailing list
>> NumPy-Discussion at scipy.org
>> http://mail.scipy.org/mailman/listinfo/numpy-discussion
>
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