MobileRead Forums - View Single Post - Possible degradation in 0.8.43 when reading PRC files

koland · 03-21-2012, 08:24 PM

I'm seeing same error (x.42), not from Baen books, enough of them it would be a royal pain to have to track them down again.

I'll try to keep an eye out for .44, as I am working on cleaning up my files and fixing the metadata, then ran into a few hundred books that can't be opened (I'm seeing the error in trying to read the books, not just convert - hopefully your fix got both).

calibre, version 0.8.42
ERROR: Could not open ebook: unpack_from requires a buffer of at least 4 bytes

Traceback (most recent call last):
File "site-packages\calibre\gui2\viewer\main.py", line 64, in run
File "threading.py", line 483, in run
File "site-packages\calibre\ebooks\oeb\iterator.py", line 205, in __enter__
File "site-packages\calibre\customize\conversion.py", line 208, in __call__
File "site-packages\calibre\ebooks\conversion\plugins\mobi_in put.py", line 50, in convert
File "site-packages\calibre\ebooks\mobi\reader\mobi6.py", line 105, in __init__
File "site-packages\calibre\ebooks\mobi\reader\headers.py", line 187, in __init__
error: unpack_from requires a buffer of at least 4 bytes

03-21-2012, 08:24 PM	#4
koland Grand Sorcerer Posts: 8,560 Karma: 8033155 Join Date: Aug 2008 Location: TN, USA Device: kindle(all), nook, nookcolor, Sony, Kobo, epic, iphone, iPad, pc	I'm seeing same error (x.42), not from Baen books, enough of them it would be a royal pain to have to track them down again. I'll try to keep an eye out for .44, as I am working on cleaning up my files and fixing the metadata, then ran into a few hundred books that can't be opened (I'm seeing the error in trying to read the books, not just convert - hopefully your fix got both). calibre, version 0.8.42 ERROR: Could not open ebook: unpack_from requires a buffer of at least 4 bytes Traceback (most recent call last): File "site-packages\calibre\gui2\viewer\main.py", line 64, in run File "threading.py", line 483, in run File "site-packages\calibre\ebooks\oeb\iterator.py", line 205, in __enter__ File "site-packages\calibre\customize\conversion.py", line 208, in __call__ File "site-packages\calibre\ebooks\conversion\plugins\mobi_in put.py", line 50, in convert File "site-packages\calibre\ebooks\mobi\reader\mobi6.py", line 105, in __init__ File "site-packages\calibre\ebooks\mobi\reader\headers.py", line 187, in __init__ error: unpack_from requires a buffer of at least 4 bytes Last edited by koland; 03-21-2012 at 08:27 PM.