pixbuf methods not working

[cdar]

python - gir bindings

GdkPixbuf.Pixbuf methods:
- 'get_pixels' returns int
- missing: 'save_to_buffer', 'save_to_callback', 'save_to_stream', 'save'
- not working: 'save_to_bufferv', 'save_to_callbackv', 'save_to_stream_finish', 'savev'

Ubuntu 11.10

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately, we cannot work on this bug because your description didn't include enough information. You may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem.

We have instructions on debugging some types of problems at http://wiki.ubuntu.com/DebuggingProcedures

At a minimum, we need:
1. the specific steps or actions you took that caused you to encounter the problem,
2. the behavior you expected, and
3. the behavior you actually encountered (in as much detail as possible).
Thanks!

[cdar (cdar07)]

This is an example which describes the bugs.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[MestreLion (mestrelion)]

I didn't test all methods, but in Ubuntu 12.04 at least 'get_pixels()' and 'savev()' seems to work fine:

using your example:

$ python
>>> from gi.repository import Gtk, GdkPixbuf
>>> t = Gtk.IconTheme.get_default()
>>> i = t.lookup_icon('edit-find', 16, 0)
>>> p = GdkPixbuf.Pixbuf.new_from_file(i.get_filename())
>>> a = p.get_pixels()
>>>
>>> print type(a)
<type 'str'>
>>> print len(a)
1024
>>> print "%r" % a[100:120]
'\x94\xa8\xd7\xfb/e\xb0\xea)a\xaeB\xff\xff\xff\x00\xff\xff\xff\x00'
>>>
>>> try:
... print 'Save pixbuf to file'
... p.savev('edit-find.png', 'png', [], [])
... print "and it works"
... except AttributeError as e:
... print e
...
Save pixbuf to file
True
and it works
>>>