[Python-apps-team] Bug#740150: ocrfeeder: Fails to export Searchable PDF without warning but with ValueError on console

[Albin]

Package: ocrfeeder
Version: 0.7.11-3
Severity: normal

Steps to reproduce:
1. load a number of pictures (I've tried several different)
2. recognise
3. use the menu option "Export as PDF" and choose "Searchable PDF" (don't know
if it happens with "From Scratch" as well, but it's possible)
4. get the following traceback (on console only—no warning messages are shown
to indicate a problem):
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/ocrfeeder/studio/studioBuilder.py",
line 320, in exportDialog
    self.EXPORT_FORMATS[format][1])
  File "/usr/lib/python2.7/dist-packages/ocrfeeder/studio/studioBuilder.py",
line 304, in exportToFormat
    name)
  File "/usr/lib/python2.7/dist-packages/ocrfeeder/studio/widgetModeler.py",
line 729, in exportPagesWithGenerator
    document_generator.addPage(page)
  File "/usr/lib/python2.7/dist-
packages/ocrfeeder/feeder/documentGeneration.py", line 431, in addPage
    self.addBoxes(page_data.data_boxes)
  File "/usr/lib/python2.7/dist-
packages/ocrfeeder/feeder/documentGeneration.py", line 79, in addBoxes
    self.addBox(data_box)
  File "/usr/lib/python2.7/dist-
packages/ocrfeeder/feeder/documentGeneration.py", line 67, in addBox
    self.addText(data_box)
  File "/usr/lib/python2.7/dist-
packages/ocrfeeder/feeder/documentGeneration.py", line 404, in addText
    text.textLines('\n'.join(lines))
  File "/usr/lib/python2.7/dist-packages/reportlab/pdfgen/textobject.py", line
436, in textLines
    lines = '\n'.split(asUnicode(stuff).strip())
ValueError: empty separator



-- System Information:
Debian Release: jessie/sid
  APT prefers testing-proposed-updates
  APT policy: (500, 'testing-proposed-updates'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.12-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages ocrfeeder depends on:
ii  cuneiform                          1.1.0+dfsg-4
ii  ghostscript                        9.05~dfsg-8+b1
ii  python                             2.7.5-5
ii  python-enchant                     1.6.5-2
ii  python-gtk2                        2.24.0-3+b1
ii  python-lxml                        3.3.1-1
ii  python-pygoocanvas                 0.14.1-1+b3
ii  python-reportlab                   3.0~b1-1
ii  python-sane [python-imaging-sane]  2.3.0-2
ii  tesseract-ocr                      3.03.02-3

Versions of packages ocrfeeder recommends:
ii  unpaper  0.4.2-1
ii  yelp     3.10.1-1

ocrfeeder suggests no packages.

-- no debconf information