I installed the test version und now every time I close the e-book viewer I get the following error message:
Spoiler:
calibre, version 3.45.0
ERROR: Unhandled exception: <b>SystemError</b>:error return without exception set
calibre 3.45 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.17134-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.17134')
Python 2.7.15+
Windows: ('10', '10.0.17134', 'SP0', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: Similar Stories (1, 0, 58) && Read MP3 AudioBook metadata (1, 0, 79) && Quick Preferences (1, 4, 1) && FanFicFare (3, 9, 7) && EpubMerge (2, 5, 0) && KoboTouchExtended (3, 1, 3) && Count Pages (1, 8, 2) && Generate Cover (1, 5, 21) && Manage Series (1, 2, 8) && Copy Cover To Device (2, 0, 0) && Annotations (1, 9, 2) && SmartEject (2, 2, 0) && Reading List (1, 6, 6) && Find Duplicates (1, 6, 3)
Traceback (most recent call last):
File "site-packages\calibre\gui2\viewer\main.py", line 379, in closeEvent
File "site-packages\calibre\gui2\viewer\main.py", line 366, in shutdown
File "site-packages\calibre\gui2\viewer\main.py", line 392, in save_state
File "site-packages\calibre\utils\config.py", line 448, in __setitem__
File "site-packages\calibre\utils\config.py", line 411, in commit
File "site-packages\calibre\utils\config.py", line 432, in to_raw
File "site-packages\calibre\utils\config_base.py", line 86, in json_dumps
File "json\__init__.py", line 251, in dumps
File "json\encoder.py", line 209, in encode
File "json\encoder.py", line 434, in _iterencode
File "json\encoder.py", line 408, in _iterencode_dict
File "json\encoder.py", line 313, in _iterencode_list
File "json\encoder.py", line 39, in encode_basestring
SystemError: error return without exception set