I was using the PI to normalize the comments before I re-generated a catalog. I was going by grouping authors
If there is not a comment in a book then there is a error
Spoiler:
calibre, version 2.52.0
ERROR: Unhandled exception: <b>TypeError</b>:cannot concatenate 'str' and 'NoneType' objects
calibre 2.52 [64bit] embedded-python: True is64bit: True
Windows-8-6.2.9200 Windows ('64bit', 'WindowsPE')
('Windows', '8', '6.2.9200')
Python 2.7.9
Windows: ('8', '6.2.9200', '', 'Multiprocessor Free')
Successfully initialized third party plugins: Quality Check && EpubMerge && Generate Cover && Manage Series && Open With && EpubSplit && NormComment && Diaps Editing Toolbag && View Manager && Modify ePub
Traceback (most recent call last):
File "calibre_plugins.norm_comment.action", line 124, in _normalize_comment
File "calibre_plugins.norm_comment.action", line 149, in _do_replace_text
File "site-packages\calibre\utils\html2text.py", line 376, in html2text
File "site-packages\calibre\utils\html2text.py", line 371, in html2text_file
File "sgmllib.py", line 103, in feed
TypeError: cannot concatenate 'str' and 'NoneType' objects
Any chance you could add another tweak for me please?