Dependency versions aren't specified

[Robert Coup]

After backporting pisa_3.0.32-1 to build on an older release, the following errors are received importing the built & installed package (eg. via `import ho.pisa`):

  ****************************************************
  IMPORT ERROR!
  Reportlab Toolkit Version 2.2 or higher needed
  ****************************************************

  The following Python packages are required for PISA:
  - Reportlab Toolkit >= 2.2 <http://www.reportlab.org/>
  - HTML5lib >= 0.11.1 <http://code.google.com/p/html5lib/>

  Optional packages:
  - pyPDF <http://pybrary.net/pyPdf/>
  - PIL <http://www.pythonware.com/products/pil/>

The dependencies in debian/control look like:

  Depends: ${misc:Depends}, ${python:Depends}, python-html5lib, python-imaging, python-pypdf, python-reportlab

Based on the above message I guess they should be:

  Depends: ${misc:Depends}, ${python:Depends}, python-html5lib (>=0.11.1), python-reportlab (>=2.2)
  Recommends: python-imaging, python-pypdf

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.