ebook-meta --to-opf segfaults

[gurmuq]

ebook-meta <pdf> seems to work fine and the metadata is parsed correctly from the filename.
If I use the --to-opf option, the metadata is printed but the program segfaults.

If I add new ebooks, following error message appears:

title_ subtitle.[author].[publisher, pubdate].isbn.(tags).pdf
Traceback (most recent call last):
  File "/usr/lib/calibre/calibre/gui2/add.py", line 176, in add
    mi = MetaInformation(OPF(opf))
  File "/usr/lib/calibre/calibre/ebooks/metadata/opf2.py", line 474, in __init__
    raise ValueError('Empty file: '+getattr(stream, 'name', 'stream'))
ValueError: Empty file: /tmp/calibre_0.7.9_h61wSb_rm_worker/0.opf

The book gets added but all the metadata is empty and the title contains the filename without extension.
This is reproducible with any regex or filename (tested only with pdfs).

Tested with calibre 0.7.8 and 0.7.9 by bumping the gentoo ebuild.

[kovidgoyal]

Works fine for me on gentoo, albeit not using the ebuilds.

ebook-meta /home/kovid/pdf/Extract_ANAT_Annual\ Report_2008.pdf --to-opf /t/t.opf
Title               : Extract ANAT Annual Report 2008
Author(s)           : Unknown
Book Producer       : Adobe InDesign CS3 (5.0.4)
OPF created in /t/t.opf

You likely have a problem with your python install. Try re-emerging python.

[gurmuq]

The problem is the PyQt4 UUID conflict you reported here:
http://bugs.gentoo.org/show_bug.cgi?id=317557

My system is x86 and I couldn't get any combination of util-linux and PyQt4 to work.

As your example on the bug report shows, it works if the UUID is loaded before PyQt4.

Importing the UUID in calibre's __init__ seems to solve the issue.

[kovidgoyal]

Oh yeah, forgot about that, have util-linux masked on all my machines.