Problems running on chakra linux.

[acemo]

Chakra is unable to run calibre since version 0.7.47.
We currently have version 0.7.46 working fine.
However all versions 0.7.47 and up are giving these same errors:

[acemo@twain ~]$ calibre-debug -g
Starting up...
Failed to load high performance sqlite C extension
'Connection' object has no attribute 'enable_load_extension'
ASSERT: "last >= first" in file kernel/qabstractitemmodel.cpp, line 2392
Aborted

I was hoping perhaps the developers would be able to help find the cause of this error?

Thanks,
acemo

[kovidgoyal]

I suggest you use the binary calibre install instead of compiling from source. That error is about being unable to load a sqlite C extension which tells me that most likely your sqlite library is too old.

[acemo]

The problem with the binary installer is we get duplicated libraries and people can't rebuild their package with their prefered compiler settings. (installing from the binary installer does work though)

We have updated a lot of packages trying to get calibre working but with no effect.

What version of libsqlite3 are you using? we are using version 3.7.5 atm.

Thanks

[kovidgoyal]

I agree, binary installs have drawbacks, but often it is the only way to distribute something as complex as calibre. sqlite >= 3.7 should be fine. Make sure the python sqlite.so module is also using sqlite >= 3.7

[acemo]

Python has been rebuild for the latest sqlite3.
Did something get changed with calibre 0.7.46 -> 0.7.47 with sqlite?
Since we do have 0.7.46 working from source but any newer version fails.

[kovidgoyal]

Looking at your error message, you need to update python to 2.7. Newer versions of calibre require python >= 2.7

[abveritas]

Thank you for the quick response so far. I'd like to add some info to this thread, since I'm the packager for Chakra for this application.
Calibre was compiled for about 25 different versions leading up to .46, that one still works. Every version since has been compiled, starts, but as soon as any data is included into the the Calibre Library, the crash occurs with the output from the first post.
To try and find were the problem is, all the dependencies have been updated, or if no update available, rebuild. The python version is 2.7.1-5. All dependencies listed here:
http://calibre-ebook.com/download_linux
are newer in Chakra, only exception chmlib, that one is still at 0.40 also.

[user_none]

My understanding of Chakra is it is very close to Arch Linux? Didn't it start life as Arch's KDEMod project then spin off into its own Arch based distro?

Is the Arch package having this same issue?

Also, you might be interested in these bugs I opened against the Arch package.

[kovidgoyal]

This error:

'Connection' object has no attribute 'enable_load_extension'

means that the sqlite module in python has no method named enable_load_extension. That method was introduced in python 2.7. As you can see here: http://docs.python.org/library/sqlit...ection-objects

Run this

calibre-debug -c "import sys; print sys.version_info"

[mattepiu]

I have tracked down very similar issue / second part of the issue:
ASSERT: "last >= first" in file kernel/qabstractitemmodel.cpp, line 2392
tracked down the guilty file is calibre/gui2/tag_view.py, in which for 3 times
beginInsertRows is used with last parameter lesser than second one, this is now forbidden in latest Qt.

(here at line 2393, the assert)
Still I haven't enough time to fix, sorry

/usr/lib64/calibre/calibre/gui2/tag_view.py:1266:                            self.beginInsertRows(category_index, 999999, 1) #len(data[key])-1)
/usr/lib64/calibre/calibre/gui2/tag_view.py:1299:                    self.beginInsertRows(category_index, 999999, 1)
/usr/lib64/calibre/calibre/gui2/tag_view.py:1335:                            self.beginInsertRows(category_index, 999999, 1)

[kovidgoyal]

I committed a fix for that.

[mattepiu]

Thank you, it's starting now on gentoo linux.

[kovidgoyal]

Originally Posted by mattepiu

Thank you, it's starting now on gentoo linux.

I'm somewhat surprised that you are having issues starting calibre on gentoo, considering that I develop it on ~amd64 gentoo.

[mattepiu]

It was depending on just the assert line in the latest 2 version of Qt I pointed above, if you're keeping Qt 4.7.1 you shouldn't find that issue.
(~amd64 gentoo here too)

[acemo]

Originally Posted by kovidgoyal

I committed a fix for that.

We got it working again in chakra aswell.