File-diff broken

["Daniel Macks" <dmacks netspace org>]

Using meld-1.7.1 on OS X 10.6 and python27, comparing two files fails
to find differences. The two files are displayed side-by-side, but with
nothing highlighted (but also no "files are the same" banner), and my
terminal reports:

Traceback (most recent call last):
  File "/sw/lib/meld/meld/task.py", line 134, in iteration
    ret = next(task)
  File "/sw/lib/meld/meld/filediff.py", line 1111, in _set_files_internal
    for i in self._load_files(files, self.textbuffer):
  File "/sw/lib/meld/meld/filediff.py", line 1064, in _load_files
    self.set_buffer_writable(t.buf, writable)
  File "/sw/lib/meld/meld/filediff.py", line 1455, in set_buffer_writable
    self.readonlytoggle[index].set_visible(not writable)
AttributeError: 'gtk.ToggleButton' object has no attribute 'set_visible'

It worked fine in 1.6.1. I get the same results using a newly-created
user account (no leftover preferences from an older version). Is this
attribute recently added to gtk? I'm running a fairly old gnome stack
but I don't see any NEWS or other notes about migrating to gtk3 or
other minimum-version requirements.

dan

 --
Daniel Macks
dmacks netspace org