The Libby app failed on my end too as of yesterday when I last tried downloading from the plugin in Calibre.
Code:
calibre, version 7.9.0
ERROR: Unhandled exception: <b>ClientForbiddenError</b>: Failed to download e-book<p>HTTP Error 403: Forbidden</p>
calibre 7.9 embedded-python: True
Windows-10-10.0.22631-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.22631')
Python 3.11.5
Windows: ('10', '10.0.22631', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: DeACSM (0, 0, 16) && Gather KFX-ZIP (from KFX Input) (2, 10, 0) && DeDRM (10, 0, 9) && Package KFX (from KFX Input) (2, 10, 0) && Action Chains (1, 20, 2) && Audit Log (1, 0, 19) && Count Pages (1, 13, 6) && Diaps Editing Toolbag (0, 4, 0) && EpubMerge (2, 18, 0) && EpubSplit (3, 7, 0) && FanFicFare (4, 33, 0) && Fantastic Fiction (1, 7, 0) && Find Duplicates (1, 10, 9) && Generate Cover (2, 3, 4) && Goodreads (1, 8, 1) && KFX metadata reader (from KFX Input) (2, 10, 0) && From KFX (2, 10, 0) && KFX Input (2, 10, 0) && Set KFX metadata (from KFX Output) (2, 7, 0) && KFX Output (2, 7, 0) && Kindle hi-res covers (0, 5, 1) && Obok DeDRM (10, 0, 9) && OverDrive Libby (0, 1, 9) && Reading List (1, 15, 4) && Reformat plugin (2, 4, 0) && Scroll Book Details (1, 0, 2) && Smashwords Metadata (1, 0, 2) && User Category (1, 6, 1)
Traceback (most recent call last):
File "calibre_plugins.overdrive_libby.libby.client", line 518, in send_request
File "urllib\request.py", line 525, in open
File "urllib\request.py", line 634, in http_response
File "urllib\request.py", line 563, in error
File "urllib\request.py", line 496, in _call_chain
File "urllib\request.py", line 643, in http_error_default
urllib.error.HTTPError: HTTP Error 403: Forbidden
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "calibre\gui2\threaded_jobs.py", line 85, in start_work
File "calibre_plugins.overdrive_libby.ebook_download", line 50, in __call__
File "calibre_plugins.overdrive_libby.ebook_download", line 94, in _custom_download
File "calibre_plugins.overdrive_libby.libby.client", line 806, in fulfill_loan_file
File "calibre_plugins.overdrive_libby.libby.client", line 538, in send_request
File "calibre_plugins.overdrive_libby.libby.errors", line 143, in process
calibre_plugins.overdrive_libby.libby.errors.ClientForbiddenError: <calibre_plugins.overdrive_libby.libby.errors.ClientForbiddenError; http_status=403, msg='HTTP Error 403: Forbidden', error_response=' ''>