8.12 breaks from calibre.ebooks.oeb.parse_utils import RECOVER_PARSER

[JSWolf]

calibre 8.12 breaks

from calibre.ebooks.oeb.parse_utils import RECOVER_PARSER

and that means that all plugins that use this no longer work with 8.12. Can this be fixed in calibre? If not, what's the replacement code so these plugins will once again work?

[kovidgoyal]

RECOVER_PARSER is gone because of bugs in lxml in windows, https://bugs.launchpad.net/lxml/+bug/2125756. I dont know why any plugins would have been using it, the correct way to parse html is to use the parse_html function from calibre.oeb.parse_utils. But if plugins want to parse html or xml using lxml directly, the relevant functions are safe_xml_fromstring and safe_html_fromstring from the calibre.utils.xml_parse module. And if they really, really want to use RECOVER_PARSER then can simply define it themselves as

from lxml import etree
RECOVER_PARSER = etree.XMLParser(recover=True, no_network=True, resolve_entities=False)

Note that I strongly recommend against using RECOVER_PARSER as it is fundamentally broken thanks to the bug in lxml linked to above.

[Voicedude]

I am using Calibre Portable and the Quality Check plug-in stopped functioning after the update to 8.12. It shows as existing in the plug-ins list. If I try to configure it I get an error message saying "you must restart Calibre to configure Quality Check" but after restarting I get the same message. I uninstalled and reinstalled the plug in but nothing changes. Not available in toolbar or context menu configuration either. Any suggestions appreciated.

[kovidgoyal]

You need to wait till the plugins are updated, which hopefully will be soon given that the fix is trivial. Or if you are desperate to use the plugins, downgrade calibre to 8.11.1

[Terisa de morgan]

I've found some plugins which use it:

• QualityCheck
• KoboUtilities (I don't know if it has changed)
• GoodReads_Sync
• Modifyepub

So, I think I'll have to wait for a bit to update calibre. Glad to have found this thread.

[JSWolf]

Originally Posted by Terisa de morgan

I've found some plugins which use it:

• QualityCheck
• KoboUtilities (I don't know if it has changed)
• GoodReads_Sync
• Modifyepub

So, I think I'll have to wait for a bit to update calibre. Glad to have found this thread.

The current Kobo Utilities does not use RECOVER_PARSER.

I've modified GoodReads Sync, Hyphenate This!, Modify ePub, and Quality Check to work with calibre 8.12. I've posted them in the plugin's thread. I've upped the versions by .1.

[JSWolf]

Originally Posted by kovidgoyal

RECOVER_PARSER is gone because of bugs in lxml in windows, https://bugs.launchpad.net/lxml/+bug/2125756. I dont know why any plugins would have been using it, the correct way to parse html is to use the parse_html function from calibre.oeb.parse_utils. But if plugins want to parse html or xml using lxml directly, the relevant functions are safe_xml_fromstring and safe_html_fromstring from the calibre.utils.xml_parse module. And if they really, really want to use RECOVER_PARSER then can simply define it themselves as

from lxml import etree
RECOVER_PARSER = etree.XMLParser(recover=True, no_network=True, resolve_entities=False)

Note that I strongly recommend against using RECOVER_PARSER as it is fundamentally broken thanks to the bug in lxml linked to above.

Thank you very much. The fix is very easy as you've said. I've been updating some of the plugins that use RECOVER_PARSER and posting them for others.

[rantanplan]

Originally Posted by JSWolf

The current Kobo Utilities does not use RECOVER_PARSER.

I've modified GoodReads Sync, Hyphenate This!, Modify ePub, and Quality Check to all work with calibre 8.12. I've posted them in the plugin's thread. I've upped the versions by .1.

Thank you for your tribute, it is well received.

[JSWolf]

Originally Posted by rantanplan

Thank you for your tribute, it is well received.

You are very welcome.

[zardoxnet]

when i use Modify ePubs I get error and a jacket is not created. This did not happen with previous version

Modify ePubs version (1, 8, 6)
Traceback (most recent call last):
File "runpy.py", line 198, in _run_module_as_main
File "runpy.py", line 88, in _run_code
File "site.py", line 42, in <module>
File "site.py", line 38, in main
File "calibre/utils/ipc/worker.py", line 213, in main
File "calibre/utils/ipc/worker.py", line 147, in arbitrary_n
File "importlib/__init__.py", line 126, in import_module
File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
File "calibre/customize/zipplugin.py", line 210, in exec_module
File "calibre_plugins.modify_epub.jobs", line 10, in <module>
File "calibre/customize/zipplugin.py", line 210, in exec_module
File "calibre_plugins.modify_epub.modify", line 19, in <module>
File "calibre/customize/zipplugin.py", line 210, in exec_module
File "calibre_plugins.modify_epub.container", line 25, in <module>
ImportError: cannot import name 'RECOVER_PARSER' from 'calibre.ebooks.oeb.parse_utils' (/Applications/calibre.app/Contents/Frameworks/plugins/python-lib.bypy.frozen/calibre/ebooks/oeb/parse_utils.pyc)

[JSWolf]

Originally Posted by zardoxnet

when i use Modify ePubs I get error and a jacket is not created. This did not happen with previous version

Go to https://www.mobileread.com/forums/sh...d.php?t=154371 and at the end of the thread, I posted a modified version of Modify ePub that fixes the problem.

[JSWolf]

Given that nobody has posted a problem with the modified plugins, would an admin please make these the latest versions? That way those not on MR can get the fixed versions. Thanks.

[PeterT]

Originally Posted by JSWolf

Given that nobody has posted a problem with the modified plugins, would an admin please make these the latest versions? That way those not on MR can get the fixed versions. Thanks.

Please note that plugins normally have 3 part numbers; ie 3.4.1 and not 3.4.1.1

I'm not sure that calibre's version check for updates will handle your numbers.

Sent from my TB350FU using Tapatalk

[PeterT]

Additionally, kiwidude maintains his plugins through GitHub. See https://github.com/kiwidude68/calibre_plugins so for at least GoodReads Sync, Modify ePub and Quality Check I'd suggest having the courtesy of doing things the correct way and submitting an update to him.

[Terisa de morgan]

Originally Posted by kovidgoyal

RECOVER_PARSER is gone because of bugs in lxml in windows, https://bugs.launchpad.net/lxml/+bug/2125756. I dont know why any plugins would have been using it, the correct way to parse html is to use the parse_html function from calibre.oeb.parse_utils. But if plugins want to parse html or xml using lxml directly, the relevant functions are safe_xml_fromstring and safe_html_fromstring from the calibre.utils.xml_parse module. And if they really, really want to use RECOVER_PARSER then can simply define it themselves as

from lxml import etree
RECOVER_PARSER = etree.XMLParser(recover=True, no_network=True, resolve_entities=False)

Note that I strongly recommend against using RECOVER_PARSER as it is fundamentally broken thanks to the bug in lxml linked to above.

Checking some plugin, RECOVER_PARSER is not used for parsing html (it uses parse_html in that case) but for parsing xml. Is there any calibre function for that?