[Terisa de morgan]

Hi,

I have a problem with an specific library and I don't know if it's a bug or it's something I'm doing wrong.

I have a library called "Biblioteca", and any time I try to switch to it, it happens the same:

1. I get the message: ERROR: Excepción no considerada: <b>TypeError</b>:bad operand type for unary -: 'unicode'
2. The library name doesn't change at the main bar
3. The library itself is changed
4. Any other library switch raises the message: RuntimeError: wrapped C/C++ object of type QAction has been deleted
5. I have to close calibre for recovering

The details are:

Spoiler:

calibre 1.37 isfrozen: True is64bit: False Windows-7-6.1.7600 Windows ('32bit', 'WindowsPE') 32bit process running on 64bit windows ('Windows', '7', '6.1.7600') Python 2.7.5 Windows: ('7', '6.1.7600', '', 'Multiprocessor Free') Traceback (most recent call last): File "site-packages\calibre\gui2\__init__.py", line 396, in dispatch File "site-packages\calibre\gui2\actions\choose_library.py", line 541, in switch_requested File "site-packages\calibre\gui2\ui.py", line 650, in library_moved File "calibre_plugins.reading_list.action", line 91, in library_changed File "calibre_plugins.reading_list.action", line 119, in rebuild_menus TypeError: bad operand type for unary -: 'unicode'

It happened in some previous versions