New version: not launching on Mountain Lion

[michelcannu]

Hi,

I cannot call myself an absolute beginner, as I used ebooks for some years now. I still am a beginner with using calibre, I used mostly Stanza for my needs. Still I came to a point where I need to transfer my ebooks from Kindle to iPad2. So... here I am: I have upgraded my calibre software to the latest version (while the former version was working) and not... it does no longer start.
I'm working on a new Macbook Pro Retina, version of the OSX software is 10.8.2. I have replace a 0.8.64 version of calibre with the newest (0.9.20). The output I get when attempting to start from the terminal is:
MBP-2:MacOS mihail$ ./calibre
Python function terminated unexpectedly: 'bool' object is not callable
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 "site-packages/calibre/gui2/main.py", line 451, in main
File "site-packages/calibre/gui2/main.py", line 397, in communicate
File "site-packages/calibre/gui2/main.py", line 372, in build_pipe
TypeError: 'bool' object is not callable
Traceback (most recent call last):
File "site-packages/calibre/utils/ipc/__init__.py", line 60, in run
Unhandled exception in thread started by <bound method RC.__bootstrap of <RC(Thread-1, stopped daemon 4572086272)>>
Traceback (most recent call last):
File "lib/python2.7/threading.py", line 524, in __bootstrap
File "lib/python2.7/threading.py", line 564, in __bootstrap_inner
File "lib/python2.7/traceback.py", line 241, in format_exc
File "lib/python2.7/traceback.py", line 141, in format_exception
File "lib/python2.7/traceback.py", line 76, in format_tb
File "lib/python2.7/traceback.py", line 101, in extract_tb
File "lib/python2.7/linecache.py", line 14, in getline
File "lib/python2.7/linecache.py", line 40, in getlines
File "lib/python2.7/linecache.py", line 111, in updatecache
TypeError: 'NoneType' object is not iterable

Any ideas on this?

Thanks,
Mihai

[kovidgoyal]

Delete the file ~/.calibre_calibre GUI.lock, then reboot your computer and you should be fine.