Calibre and WINE

[therapon]

When I add books to Calibre in Kubuntu, for some it expects Wine stuff in my home directory. Since my Wine prefix is /home/myname/.wine/, Calibre doesn't find it, then adds dosdevices & drive_c folders along with registry files in /home/myname/ directory. Is there any way to tell Calibre to look in the right place for Wine?

Calibre 2.60
Kubuntu 14.04

[itimpi]

There should be no reason why Calibre expects WINE. Are you sure you did not install the Windows version of Calibre?

[therapon]

Only if this series of commands installs a windows version:

sudo -v && wget -nv -O- https://raw.githubusercontent.com/ko...x-installer.py | sudo python -c "import sys; main=lambda:sys.stderr.write('Download failed\n'); exec(sys.stdin.read()); main()"

[gbm]

Originally Posted by therapon

Only if this series of commands installs a windows version:

sudo -v && wget -nv -O- https://raw.githubusercontent.com/ko...x-installer.py | sudo python -c "import sys; main=lambda:sys.stderr.write('Download failed\n'); exec(sys.stdin.read()); main()"

Try using this:

sudo -v && wget -nv -O- https://raw.githubusercontent.com/kovidgoyal/calibre/master/setup/linux-installer.py | sudo python -c "import sys; main=lambda x:sys.stderr.write('Download failed\n'); exec(sys.stdin.read()); main('/opt')"

bernie

[therapon]

Thanks, I uninstalled then reinstalled using the command you supplied. That seems to have fixed the issue.

Two questions:
1. I see the difference in the commands - "main=lambda:sys.stderr.write" vs "main=lambda x:sys.stderr.write". What is the significance of the change?

2. Will the supplied command for Binary Install on the calibre download page be changed? Or should I plan to keep using the one you supplied for updates?

[eschwartz]

A lambda creates an anonymous function, and needs to know how many arguments to consume in case the installation script fails to download.

It is the difference between printing:

2016-07-04 15:11:16 ERROR 404: Not Found.
Traceback (most recent call last):
  File "<string>", line 1, in <module>
TypeError: <lambda>() takes 0 positional arguments but 1 was given

and:

2016-07-04 15:10:39 ERROR 404: Not Found.
Download failed

tl;dr How many arguments did you pass into:
main()
main('/opt')
main('/opt', True)

[gbm]

Originally Posted by therapon

Thanks, I uninstalled then reinstalled using the command you supplied. That seems to have fixed the issue.

Two questions:
1. I see the difference in the commands - "main=lambda:sys.stderr.write" vs "main=lambda x:sys.stderr.write". What is the significance of the change?

2. Will the supplied command for Binary Install on the calibre download page be changed? Or should I plan to keep using the one you supplied for updates?

Originally Posted by eschwartz

A lambda creates an anonymous function, and needs to know how many arguments to consume in case the installation script fails to download.

It is the difference between printing:

2016-07-04 15:11:16 ERROR 404: Not Found.
Traceback (most recent call last):
  File "<string>", line 1, in <module>
TypeError: <lambda>() takes 0 positional arguments but 1 was given

and:

2016-07-04 15:10:39 ERROR 404: Not Found.
Download failed

tl;dr How many arguments did you pass into:
main()
main('/opt')
main('/opt', True)

What eschwartz said about lambda, the problem I suspect is not in the downloader but something to do with your system. I think your system was not parsing the main command correctly to put calibre in /opt. All we did was use the downloader that lets you change the directory calibre gets installed to. It is the second one listed under Notes on the calibre Linux page.

What version of Kubuntu are you using?

bernie

P.S.
Did calibre work?

[therapon]

Yes, installing with the second command worked. You are correct, the first command did not put it in /opt but the second one did. I'm using Kubuntu 14.04.4

[therapon]

Guess I spoke too quickly :-( Once again Calibre thought it needed to create WINE folders and files. This time it occurred (maybe always, I'm not sure) when I imported a PDF into Calibre. EPUB's and AZW3's seem to import fine. So... I'm still not sure what's going on.

[eschwartz]

Do you have any plugins installed, and if so, which ones?

Particularly, filetype plugins (which operate during the importation of books).

...

calibre itself certainly doesn't invoke WINE at any time (unless you run calibre from WINE for some strange reason) but thirdparty plugins can do whatever they want.

[PeterT]

Might also be worth while running calibre in debug mode and posting the resulting log file.

[therapon]

Thanks for the suggestions eschwartz and PeterT. It is one of the filetype plugins that requires windows to run a python script. Guess I'll have to bug the author of the plugin to fix it.

[eschwartz]

Hmm, now that I think about it, the DeDRM plugin (which uses WINE to decrypt EPUB/PDF via Adobe Digital Editions) is probably responsible.

It is probably calling WINE in order to attempt to run the key extraction code.

But in that case, it should be triggering on EPUBs as well.

...

AFAIK, the plugin tries DeDRMing all imported AZW*/EPUB/PDF whether they need it or not.

[therapon]

Yup, you are correct eschwartz. Setting the WINEPREFIX in the plugin config seems to have remedied the problem. It would be nice, though, if it would use the linux version of ActiveState instead of requiring the Win version. Oh well

[eschwartz]

No, it has to run within WINE in order to use the Windows/WINE environment to scrape information from the Windows programs in question and/or config/registry info.

I mean, how else do you expect to use a Windows program (the Windows version of the DeDRM internals) on Linux?