[ldolse]

A bug in this plugin if only word count is configured:

Traceback (most recent call last):
  File "calibre_plugins.count_pages.action", line 56, in count_pages
NameError: global name 'is_value_word_col' is not defined

edit - also got this error when I edited a book which has both an epub and mobi file:

calibre, version 0.8.5
ERROR: Failed to count pages: <b>Failed</b>: Count ePub Pages

Count ePub Pages
Python function terminated unexpectedly: 'NoneType' object is not iterable
Traceback (most recent call last):
  File "/Applications/calibre.app/Contents/Resources/Python/lib/python2.7/site.py", line 147, in main
    return run_entry_point()
  File "/Applications/calibre.app/Contents/Resources/Python/lib/python2.7/site.py", line 116, in run_entry_point
    return getattr(pmod, func)()
  File "/Users/ldolse/calibredev/heuristics/src/calibre/utils/ipc/worker.py", line 181, in main
    result = func(*args, **kwargs)
  File "/Users/ldolse/calibredev/heuristics/src/calibre/utils/ipc/worker.py", line 138, in arbitrary_n
    return func(*args, **kwargs)
  File "calibre_plugins.count_pages.jobs", line 53, in do_count_pages
TypeError: 'NoneType' object is not iterable

Not sure why it's a coming back as a NoneType object... other books do work, so not sure what's special about this one.