#121 No longer able to go to previous archive

[Kim Scarborough]

I am no longer able to go to the previous archive in Mcomix. Here's the debug output for when I try:

08:37:19 [MainThread] DEBUG: provider 0 succeeded in decoding 1511 bytes
08:37:19 [MainThread] DEBUG: provider 0 succeeded in decoding 2447 bytes
08:37:19 [MainThread] DEBUG: provider 0 succeeded in decoding 4060 bytes
08:37:19 [MainThread] DEBUG: Ask for priority extraction around page 51: 51 52 49 50
08:37:19 [MainThread] DEBUG: Caching page(s) 51 52 49 50
08:37:19 [MainThread] ERROR: ! Callback <bound method ?._listed_contents of <mcomix.file_handler.FileHandler object at 0x7f527d1f1950>> failed: 'NoneType' object is not iterable
08:37:19 [MainThread] DEBUG: Traceback:
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/mcomix/callback.py", line 84, in __run_callbacks
    callback(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/mcomix/file_handler.py", line 315, in _listed_contents
    self._archive_opened(image_files)
  File "/usr/lib/python2.7/site-packages/mcomix/file_handler.py", line 173, in _archive_opened
    self._window.set_page(current_image_index + 1)
  File "/usr/lib/python2.7/site-packages/mcomix/main.py", line 635, in set_page
    self.page_changed()
  File "/usr/lib/python2.7/site-packages/mcomix/callback.py", line 27, in __call__
    result = self.__function(self.__object, *args, **kwargs)
  File "/usr/lib/python2.7/site-packages/mcomix/main.py", line 629, in page_changed
    self._update_page_information()
  File "/usr/lib/python2.7/site-packages/mcomix/main.py", line 536, in _update_page_information
    left_filesize, right_filesize = self.imagehandler.get_page_filesize(double=True)
TypeError: 'NoneType' object is not iterable

08:37:30 [MainThread] DEBUG: provider 0 succeeded in decoding 1511 bytes
08:37:30 [MainThread] DEBUG: provider 0 succeeded in decoding 2447 bytes
08:37:30 [MainThread] DEBUG: provider 0 succeeded in decoding 4060 bytes

[Kim Scarborough]

Actually, looks like it's only the case when I'm in double-page mode. Works fine otherwise.

[Oddegamra]

This was not reproducible with either single page mode or double page mode. Might have already been fixed.