cannot read interlaced PNG files

[Filip Palm (helmut)]

Elisa hangs when trying to open the attached picture.
[[BR]]

Traceback (most recent call last):
  File "/usr/bin/elisa", line 7, in ?
    sys.exit(
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/application.py", line 344, in start
    reactor.run()
  File "/usr/lib/python2.4/site-packages/twisted/internet/gtk2reactor.py", line 175, in run
    self.__run()
  File "/usr/lib/python2.4/site-packages/twisted/internet/gtk2reactor.py", line 216, in simulate
    self.runUntilCurrent()
--- <exception caught here> ---
  File "/usr/lib/python2.4/site-packages/twisted/internet/base.py", line 555, in runUntilCurrent
    call.func(*call.args, **call.kw)
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/application.py", line 293, in refresh
    self._window.dispatch_events(additional_events=additional_events)
  File "/usr/lib/python2.4/site-packages/pgm/layout/window.py", line 155, in dispatch_events
    self._do_event(event)
  File "/usr/lib/python2.4/site-packages/pgm/layout/window.py", line 222, in _do_event
    self._do_key_press_event(_event)
  File "/usr/lib/python2.4/site-packages/pgm/layout/window.py", line 260, in _do_key_press_event
    getattr(self, signal_name).emit(_event)
  File "/usr/lib/python2.4/site-packages/pgm/message/signal.py", line 97, in emit
    receiver(*data, **kw)
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/plugins/skins/default/skin.py", line 138, in keypress_cb
    getattr(self, action)()
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/plugins/skins/default/skin.py", line 185, in activate
    activated = manager.activate_current_menu_item()
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/menu_manager.py", line 136, in activate_current_menu_item
    menu_item.fire_action()
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/menu.py", line 352, in fire_action
    self.fire_callback('action', *args)
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/menu.py", line 339, in fire_callback
    callback(*args)
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/plugins/pictures.py", line 219, in show_picture
    appli.load_image_uri(target_path, in_slideshow=in_slideshow)
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/application.py", line 231, in load_image_uri
    self.get_skin().display_image(uri, in_slideshow=in_slideshow)
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/plugins/skins/default/skin.py", line 360, in display_image
    img = image.Image(uri)
  File "/usr/lib/python2.4/site-packages/elisa-0.1.2-py2.4.egg/elisa/core/plugins/skins/image.py", line 67, in __init__
    pgm_image.Image.__init__(self, self._used_full_path)
  File "/usr/lib/python2.4/site-packages/pgm/form/image.py", line 36, in __init__
    self._pixels = self._image.tostring('raw', self._image.mode, 0, 1)
  File "/usr/lib/python2.4/site-packages/PIL/Image.py", line 455, in tostring
    self.load()
  File "/usr/lib/python2.4/site-packages/PIL/ImageFile.py", line 155, in load
    self.load_prepare()
  File "/usr/lib/python2.4/site-packages/PIL/PngImagePlugin.py", line 337, in load_prepare
    raise IOError("cannot read interlaced PNG files")
exceptions.IOError: cannot read interlaced PNG files

[Filip Palm (helmut) (bugzilla-helmut)]

File to big, if you need it i can mail it to you.

[Philippe Normand (philn)]

This is a PIL issue, I'm afraid I can't do anything except catch the exception and push upstream author to add interlaced png support to PIL

[Filip Palm (helmut) (bugzilla-helmut)]

Replying to [comment:2 philn]:
> This is a PIL issue, I'm afraid I can't do anything except catch the exception and push upstream author to add interlaced png support to PIL

Do they have a bug tracker so i can track the progress? And if i find something similar in the future i can file bugreports myself. Couldn't find any information about a bug tracker on there homepage.

[Philippe Normand (philn)]

There's no bugtracker i know of on Python Imaging Library... however the developers provide some support through the Image SIG: http://mail.python.org/mailman/listinfo/image-sig

[Philippe Normand (philn)]

(In [1259])
        * docs/coding_style.txt:
        * po/elisa.po:
        i18n related notes and sample elisa.po file

        * elisa/core/plugins/skins/default/skin.py:
        * elisa/core/plugins/skins/deferred_image.py:
        * elisa/core/plugins/skins/image.py:
        When a picture fails to load, swap it with the 'unknown'
        icon. When the user want to display such a failed picture, notify
        him of the error, fixes #186