@DaltonST:
Wow, thanks! Doing any more with it would be way beyond me. But I do really appreciate that you took a crack at it.
For reference:
The purpose of the plugin is described in the original post
here.
After installing your updated version, I was able to bring up the Book Links dialog for one of my books, but for three other books it just gave an error similar to the following:
Traceback (most recent call last):
File "calibre_plugins.book_links.ui", line 79, in show_ui
File "calibre_plugins.book_links.main", line 53, in __init__
File "calibre_plugins.book_links.main", line 62, in load_bklf
IOError: [Errno 2] No such file or directory: u'E:\\Calibre\\Library\\William Shakespeare/The Complete Works of William Shakespear (429)\\The Complete Works of William Shakespear - William Shakespeare.txt'
calibre 2.57.1 [64bit] on Windows 10 Pro