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Old 09-10-2018, 12:32 PM   #1
nwgal
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[SOLVED] UNABLE TO DOWNLOAD METADATA

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This problem has been solved.
See this post from Kovid Goyal
==>> https://www.mobileread.com/forums/sh...7&postcount=63

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Hi everyone,
Not sure why all of a sudden I'm unable to download metadata. Screenshot attached. Here are the details of the message:

calibre, version 3.31.0
ERROR: Download failed: Failed to download metadata. Click Show Details to see details

Traceback (most recent call last):
File "site-packages\calibre\utils\ipc\simple_worker.py", line 289, in main
File "site-packages\calibre\ebooks\metadata\sources\worker.py ", line 102, in single_identify
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 79, in patch_plugins
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 62, in patch_search_engines
File "<string>", line 11, in <module>
ImportError: No module named polyglot.builtins

Please help. Thank you in advance.
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Last edited by BetterRed; 09-11-2018 at 05:50 PM.
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Old 09-10-2018, 12:42 PM   #2
netromo
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I've got the exact same problem. Same error message.
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Old 09-10-2018, 12:43 PM   #3
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I'm having the exact same error as above, on a Portable install. Worked fine last night, and nothing has been changed / updated on my end since then.
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Old 09-10-2018, 12:46 PM   #4
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Same here

A nearly identical thing happened to me today, of all a sudden. None of my computers can use this download feature that was working fine this morning, and I haven't installed or uninstalled anything. In fact, when I encountered the problem, I tried uninstalling the Calibre, and even my anti-virus, but it didn't work; then I realised that none of my other computers work either.

I've tried playing with the Preferences/Metadata_Download, trying to change the server and ticking and unticking options, but nothing works.

I hope anyone has a suggestion, but it seems to be server related somehow. My Internet works fine, by the way.

Quote:
calibre, version 3.31.0
ERROR: Download failed: Failed to download any covers, click "Show details" for details.

Traceback (most recent call last):
File "site-packages\calibre\gui2\metadata\single_download.py" , line 585, in run
File "site-packages\calibre\gui2\metadata\single_download.py" , line 604, in run_fork
File "site-packages\calibre\utils\ipc\simple_worker.py", line 224, in fork_job
File "site-packages\calibre\utils\ipc\simple_worker.py", line 138, in create_worker
File "site-packages\calibre\utils\ipc\launch.py", line 228, in __call__
File "subprocess.py", line 711, in __init__
File "subprocess.py", line 959, in _execute_child
WindowsError: [Error 2] The system cannot find the file specified
In fact, earlier I noticed the error "No module named polyglot.builtins", but now it says something else (see box above). This is what I get when I try again:

Quote:
calibre, version 3.31.0
ERROR: Download failed: Failed to download metadata. Click "Show Details" to see details.

Traceback (most recent call last):
File "site-packages\calibre\utils\ipc\simple_worker.py", line 289, in main
File "site-packages\calibre\ebooks\metadata\sources\worker.py ", line 102, in single_identify
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 79, in patch_plugins
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 62, in patch_search_engines
File "<string>", line 11, in <module>
ImportError: No module named polyglot.builtins

Last edited by lazarus1907; 09-10-2018 at 12:58 PM.
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Old 09-10-2018, 01:05 PM   #5
GalacticHull
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Same

Yes. Same issue here. Two metadata fetches worked, and the third did not. Began 5 minutes prior to this post. I updated to Calibre 3.31, same error.


Quote:
calibre, version 3.31.0
ERROR: Download failed: Failed to download metadata. Click Show Details to see details

Traceback (most recent call last):
File "site-packages\calibre\utils\ipc\simple_worker.py", line 289, in main
File "site-packages\calibre\ebooks\metadata\sources\worker.py ", line 102, in single_identify
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 79, in patch_plugins
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 62, in patch_search_engines
File "<string>", line 11, in <module>
ImportError: No module named polyglot.builtins
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Old 09-10-2018, 01:06 PM   #6
ensmingr
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I also suddenly get the "Failed to download metadata" message, with the text below:

Traceback (most recent call last):
File "site-packages\calibre\utils\ipc\simple_worker.py", line 289, in main
File "site-packages\calibre\ebooks\metadata\sources\worker.py ", line 102, in single_identify
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 79, in patch_plugins
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 62, in patch_search_engines
File "<string>", line 11, in <module>
ImportError: No module named polyglot.builtins
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Old 09-10-2018, 01:10 PM   #7
jjefrey
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Using Calibre 3.31.

Worked fine earlier today, now getting same message.

calibre, version 3.31.0
ERROR: Download failed: Failed to download metadata. Click Show Details to see details

Traceback (most recent call last):
File "site-packages\calibre\utils\ipc\simple_worker.py", line 289, in main
File "site-packages\calibre\ebooks\metadata\sources\worker.py ", line 102, in single_identify
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 79, in patch_plugins
File "site-packages\calibre\ebooks\metadata\sources\update.py ", line 62, in patch_search_engines
File "<string>", line 11, in <module>
ImportError: No module named polyglot.builtins
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Old 09-10-2018, 01:13 PM   #8
imp_ulse
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cant pull metadata anymore

In Calibre 3.31 I can no longer scrape metadata/covers for books, whenever I do I get the following error;

Code:
calibre, version 3.31.0
ERROR: Download failed: Failed to download metadata. Click Show Details to see details

Traceback (most recent call last):
  File "site-packages\calibre\utils\ipc\simple_worker.py", line 289, in main
  File "site-packages\calibre\ebooks\metadata\sources\worker.py", line 102, in single_identify
  File "site-packages\calibre\ebooks\metadata\sources\update.py", line 79, in patch_plugins
  File "site-packages\calibre\ebooks\metadata\sources\update.py", line 62, in patch_search_engines
  File "<string>", line 11, in <module>
ImportError: No module named polyglot.builtins
It just out of nowhere started giving this error, I tried updating to 3.31 (from 3.30) i ran repair, nothing is working, to be clear, it has been working fine, I've pulled metadata/covers for thousands of books, pulled a bunch as recently as yesterday. (Win64 version)

Last edited by imp_ulse; 09-10-2018 at 02:19 PM.
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Old 09-10-2018, 01:14 PM   #9
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me too, in Linux (Ubuntu-Kubuntu 18.04 64 bit) and Windows 10-64, calibre 3.31 and I tried to downgrade calibre to 3.30 in Windows 10 but same issue.
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Old 09-10-2018, 01:35 PM   #10
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Having exactly the same problem.

If trying to download covers:
Code:
calibre, version 3.31.0
ERROR: Download failed: Failed to download any covers, click "Show details" for details.

Traceback (most recent call last):
  File "site-packages/calibre/utils/ipc/simple_worker.py", line 289, in main
  File "site-packages/calibre/ebooks/metadata/sources/worker.py", line 110, in single_covers
  File "site-packages/calibre/ebooks/metadata/sources/update.py", line 79, in patch_plugins
  File "site-packages/calibre/ebooks/metadata/sources/update.py", line 62, in patch_search_engines
  File "<string>", line 11, in <module>
ImportError: No module named polyglot.builtins
If trying to download metadata:
Code:
calibre, version 3.31.0 (darwin, embedded-python: True)
Failed to download metadata: Failed: Download metadata for one book

Starting job: Download metadata for one book 
Job: "Download metadata for one book" failed with error: 
Traceback (most recent call last):
  File "site-packages/calibre/gui2/threaded_jobs.py", line 84, in start_work
  File "site-packages/calibre/gui2/metadata/bulk_download.py", line 255, in download
Exception: Failed to download metadata. Original traceback: 

Traceback (most recent call last):
  File "site-packages/calibre/utils/ipc/simple_worker.py", line 289, in main
  File "site-packages/calibre/ebooks/metadata/sources/worker.py", line 55, in main
  File "site-packages/calibre/ebooks/metadata/sources/update.py", line 79, in patch_plugins
  File "site-packages/calibre/ebooks/metadata/sources/update.py", line 62, in patch_search_engines
  File "<string>", line 11, in <module>
ImportError: No module named polyglot.builtins

 
Called with args: ([1967], u'/var/folders/nl/50d7fqdn6rzdhbmz970z6ncm0000gn/C/calibre_3.31.0_tmp_GhAuRQ/75VK4K_metadata_bulk.log', <calibre.db.legacy.LibraryDatabase object at 0x10a217f10>, True, False, None) {u'abort': <threading._Event object at 0x10eecd210>, u'notifications': <Queue.Queue instance at 0x115d04b48>, u'log': <calibre.utils.logging.GUILog object at 0x10eecd350>}
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Old 09-10-2018, 01:40 PM   #11
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Same problem here. Started today and seems to be independent of the version (i.e. same problem either in 3.30 ou 3.31).
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Old 09-10-2018, 01:46 PM   #12
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Same happening here: calibre 3.31 64 bits/calibre portable and callibre 3.30 portable, W10 64bit (3.30 worked prior to Friday and 3.31 I think too).
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Old 09-10-2018, 01:54 PM   #13
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Same here. I tried uninstalling and reinstalling the software with no luck. Using Windows 64-bit version 3.31.0
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Old 09-10-2018, 02:04 PM   #14
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I suspect Windows updated one of the Libraries (DLL's) that Calibre depends on, which is why everyone who runs calibre on a 'connected' pc, has been hit. (I suspect that if your laptop HAS NOT connected to M$, then this has not happened. BUT, then the PI would also have no source to get data from, so who cares if it is broke )
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Old 09-10-2018, 02:11 PM   #15
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Quote:
Originally Posted by theducks View Post
I suspect Windows updated one of the Libraries (DLL's) that Calibre depends on, which is why everyone who runs calibre on a 'connected' pc, has been hit. (I suspect that if your laptop HAS NOT connected to M$, then this has not happened. BUT, then the PI would also have no source to get data from, so who cares if it is broke )
Happening on Mac as well, so I suspect it's not an MS issue.
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