Library Maintenance - Check Library Error

[ampws]

I installed the latest version directly from the website and suddenly I am getting an error message when I run library maintenance/check library.

Here is the error message:

calibre Debug log
calibre 4.18 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: en_GB
Successfully initialized third party plugins: DeDRM (6, 6, 1) && Amazon.com Multiple Countries (1, 0, 0) && FanFicFare (3, 20, 0) && Clean Metadata (0, 0, 6)
calibre 4.18 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: en_GB
Successfully initialized third party plugins: DeDRM (6, 6, 1) && Amazon.com Multiple Countries (1, 0, 0) && FanFicFare (3, 20, 0) && Clean Metadata (0, 0, 6)
Turning on automatic hidpi scaling
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 135.5328125 x 135.466666667
Using calibre Qt style: True
[0.00] Starting up...
[0.00] Showing splash screen...
[0.47] splash screen shown
[0.47] Initializing db...
[0.70] db initialized
[0.70] Constructing main UI...
FFF: INFO: 2020-06-05 22:17:37,755: calibre_plugins.fanficfare_plugin.prefs(214): Attempting to read settings from predecessor--FFDL
FFF: INFO: 2020-06-05 22:17:37,756: calibre_plugins.fanficfare_plugin.prefs(219): Using default settings
FFF: DEBUG: 2020-06-05 22:17:37,759: calibre_plugins.fanficfare_plugin.fff_plugin(209): Plugin FanFicFare macmenuhack file_path:C:\Users\ampws\AppData\Roaming\calibre\p lugins\fanficfare_macmenuhack.txt
[4.51] main UI initialized...
[4.51] Hiding splash screen
[10.55] splash screen hidden
[10.55] Started up in 10.55 seconds with 2621 books
calibre 4.18 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: en_GB
Successfully initialized third party plugins: DeDRM (6, 6, 1) && Amazon.com Multiple Countries (1, 0, 0) && FanFicFare (3, 20, 0) && Clean Metadata (0, 0, 6)
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\choose_library.py", line 544, in check_library
File "site-packages\calibre\gui2\__init__.py", line 410, in question_dialog
TypeError: unhashable type: 'list'

Any help would be appreciated.

Yours

AMPWS

[kovidgoyal]

This is likely caused by one of the plugins you have installed setting an invalid value for skip_dialog_name when calling question_dialog. If you are somewhat tech-savvy you can fix it by editing the gui.json file in the calibre config directory, otherwise wait for the next release which will have a workaround.

[ampws]

Well I removed all the user plug-in's and still got the error message.

calibre 4.18 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: en_GB
Traceback (most recent call last):
File "site-packages\calibre\gui2\tag_browser\ui.py", line 314, in do_tag_item_delete
File "site-packages\calibre\gui2\__init__.py", line 410, in question_dialog
TypeError: unhashable type: 'list'

The only commonality between the two error messages seems to be:

File "site-packages\calibre\gui2\__init__.py", line 410, in question_dialog
TypeError: unhashable type: 'list'

AMPWS

[chaley]

Kovid, this is probably happening because of line 304 in tag_browser/ui.py:
skip_dialog_name='tag_item_delete',
The erroneous trailing comma is creating a list.

I will push a correction tomorrow (Sunday) AM my time, as well as some performance improvements for edit_authors, after I test it.

EDIT: I can't make it fail with or without the erroneous comma. Sigh.

[kovidgoyal]

@chaley: That i indeed likely the source fo the bug, good catch. You cant make it fail because I already implemented the fix for it which will be in the next release.

[ampws]

Thanks for the help guys.

I solved it my way - i.e. I stripped calibre off the machine did a cold restart and a new install of calibre, rebuilt the library by adding a backup as new entries. 3263 books added, cleaned up the database a bit too as it was getting a bit bloated what with removals etc.

AMPWS