Problems adding .epub to calibre Mac OS High Sierra

cateroseg · 12-20-2017, 11:17 PM

All has been fine for about a month but now when I try to add .epub files to convert it gives me this error.
Any suggestions on what is wrong? Pdfs can be added with no issues.

calibre, version 3.14.0
WARNING: Errors while adding: There were problems adding some files, click "Show details" for more information
----------------------------------------------------------------------
Failed to add the file /Users/categibson/Documents/Ebook Files(Novels & Recipe Books)/Eaternity.epub to the book: /Users/categibson/Documents/Ebook Files(Novels & Recipe Books)/Eaternity
With error:
Traceback (most recent call last):
File "site-packages/calibre/gui2/add.py", line 430, in add_formats
File "site-packages/calibre/db/cache.py", line 1410, in add_format
File "site-packages/calibre/startup.py", line 122, in local_open
IOError: [Errno 21] Is a directory: u'/Users/categibson/Documents/Ebook Files(Novels & Recipe Books)/Eaternity.epub'

kovidgoyal · 12-21-2017, 12:16 AM

That's not an epub file, its a directory whose name ends with .epub

These are typically created by apple software like ibooks. A bit of googling should find you some scripts to convert these directories back to actual epub files.

Aristoexian · 01-02-2022, 07:03 PM

Can you possibly answer 2 questions about implementing this script for a non-coder?

1) Must I edit anything to match my own paths (or anything else?)
2) How best get the string (don't even have a py file) into Automator for Mac/Catalina?

Thanks for any help

DNSB · 01-02-2022, 09:55 PM

Hmmm... 4 years after the last post in the thread and responding about a script without giving the name of the script or the site from which it was obtained.

Perhaps a bit more information might have been helpful?

PeterT · 01-02-2022, 10:14 PM

I seem to recall there used to be a script posted by maybe pdurrant that would recreate an Epub that had been opened on a Mac.

Sent from my Pixel 4a using Tapatalk

DNSB · 01-03-2022, 02:30 PM

I'm not certain if he is using @pdurrant's scrip since that does not require much other than allowing it to run in the Privacy and Security app. There is also eCanCrusher which I tried a couple of times which does much the same converting between a directory and an epub file.

jannik42 · 01-01-2023, 07:00 AM

Calibre expects ePub-files to be zip-compressed.

If you right-click (or control-click) on the file and get the option to "Show Package Contents", the file is actually a folder.

You can simply choose "Compress" from the context menu in Finder. This will create a "name.epub.zip" file. Now rename it to "name.epub" and add it to Calibre!

No script necessary

12-20-2017, 11:17 PM	#1
cateroseg Member Posts: 17 Karma: 10 Join Date: Dec 2017 Device: Kobo Libra H2O	Problems adding .epub to calibre Mac OS High Sierra All has been fine for about a month but now when I try to add .epub files to convert it gives me this error. Any suggestions on what is wrong? Pdfs can be added with no issues. calibre, version 3.14.0 WARNING: Errors while adding: There were problems adding some files, click "Show details" for more information ---------------------------------------------------------------------- Failed to add the file /Users/categibson/Documents/Ebook Files(Novels & Recipe Books)/Eaternity.epub to the book: /Users/categibson/Documents/Ebook Files(Novels & Recipe Books)/Eaternity With error: Traceback (most recent call last): File "site-packages/calibre/gui2/add.py", line 430, in add_formats File "site-packages/calibre/db/cache.py", line 1410, in add_format File "site-packages/calibre/startup.py", line 122, in local_open IOError: [Errno 21] Is a directory: u'/Users/categibson/Documents/Ebook Files(Novels & Recipe Books)/Eaternity.epub'

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12-21-2017, 12:16 AM	#2
kovidgoyal creator of calibre Posts: 45,363 Karma: 27230406 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That's not an epub file, its a directory whose name ends with .epub These are typically created by apple software like ibooks. A bit of googling should find you some scripts to convert these directories back to actual epub files.

01-02-2022, 07:03 PM	#3
Aristoexian New Here Posts: 13 Karma: 10 Join Date: Sep 2012 Location: Upper Midwest Device: iPad Pro \| iPhone 11 \| MBP	Can you possibly answer 2 questions about implementing this script for a non-coder? 1) Must I edit anything to match my own paths (or anything else?) 2) How best get the string (don't even have a py file) into Automator for Mac/Catalina? Thanks for any help

01-02-2022, 09:55 PM	#4
DNSB Bibliophagist Posts: 46,273 Karma: 168983734 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	Hmmm... 4 years after the last post in the thread and responding about a script without giving the name of the script or the site from which it was obtained. Perhaps a bit more information might have been helpful?

01-02-2022, 10:14 PM	#5
PeterT Grand Sorcerer Posts: 13,530 Karma: 78910202 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	I seem to recall there used to be a script posted by maybe pdurrant that would recreate an Epub that had been opened on a Mac. Sent from my Pixel 4a using Tapatalk

01-03-2022, 02:30 PM	#6
DNSB Bibliophagist Posts: 46,273 Karma: 168983734 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	I'm not certain if he is using @pdurrant's scrip since that does not require much other than allowing it to run in the Privacy and Security app. There is also eCanCrusher which I tried a couple of times which does much the same converting between a directory and an epub file.

01-01-2023, 07:00 AM	#7
jannik42 Junior Member Posts: 2 Karma: 10 Join Date: Jan 2023 Device: Kindle	Calibre expects ePub-files to be zip-compressed. If you right-click (or control-click) on the file and get the option to "Show Package Contents", the file is actually a folder. You can simply choose "Compress" from the context menu in Finder. This will create a "name.epub.zip" file. Now rename it to "name.epub" and add it to Calibre! No script necessary

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