[reportlab-users] Error generating a document in Reportlab 2.1, Python2.5

[Mike Steder]

Hello All,

I recently upgraded from Python2.4 and Reportlab 1.2 to Python2.5 and
Reportlab 2.1.  I'm unable to generate documents due to the following
error:
--------------
    rml2pdf.go(rml, verbose=0, ignoreDefaults=0, outputFileName=outfile)
  File "rlextra/rml2pdf/rml2pdf.py", line 4521, in go
  File "/usr/local/lib/reportlab_2_1/reportlab/platypus/doctemplate.py",
line 740, in build
    self.handle_flowable(flowables)
  File "/usr/local/lib/reportlab_2_1/reportlab/platypus/doctemplate.py",
line 638, in handle_flowable
    if frame.add(f, self.canv, trySplit=self.allowSplitting):
  File "/usr/local/lib/reportlab_2_1/reportlab/platypus/frames.py", line
141, in _add
    w, h = flowable.wrap(aW, h)
  File "rlextra/rml2pdf/rml2pdf.py", line 2830, in wrap
  File "/usr/local/lib/reportlab_2_1/reportlab/platypus/paragraph.py",
line 569, in wrap
    self.blPara = self.breakLines([first_line_width, later_widths])
  File "/usr/local/lib/reportlab_2_1/reportlab/platypus/paragraph.py",
line 672, in breakLines
    nFrags= len(frags)
TypeError: object of type 'NoneType' has no len()
-------------------

rml2pdf fails with the same error.

At this point I'm at a loss as to how to further debug or diagnose the
problem.  I've run the unittests for both Reportlab and Rlextra and all
tests appear to run successfully.  The exception makes it look like a
problem with my RML although the same document appears to generate
correctly using Reportlab 1.21 on Python 2.4.

Any information about how to fix or to further diagnose this problem
would be greatly appreciated.  I've append some
information about my system and the output of rl_check.py.

I could attach the RML that I'm running rml2pdf on but it's 95KB or so and 
violates the maximum message size for the list.

~Mike Steder
Textura LLC

--------
uname -a:
Linux msteder.texturallc.net 2.6.22-13-generic #1 SMP Thu Oct 4 17:52:26
GMT 2007 x86_64 GNU/Linux

Python 2.5.1 (r251:54863, Oct  5 2007, 13:50:07) 
[GCC 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)] on linux2

rl_check.py returns:
msteder at msteder:~/Desktop$ python rl_check.py 
ReportLab Health Check script
_____________________________


This will inspect your reportlab installations and help you
ensure they are correct, complete and up to date.  If you don't
have reportlab's software installed, it will help you.  It will
NOT modify anything at all, so you can run it safely at any time.

Python 2.5.1 (r251:54863, Sep 29 2007, 12:44:03) 
[GCC 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)]
Executable: /usr/bin/python


1. ReportLab Toolkit - open source PDF library... version 2.1
        (in /usr/local/lib/reportlab_2_1/reportlab/__init__.pyc)

2. _rl_accel extension module... found version 0.61
        (in /usr/lib/python2.5/site-packages/_rl_accel.so)

3. Python Imaging Library... found
        (in /usr/lib/python2.5/site-packages/PIL)

4. _renderPM extension module... found version 1.04
        (in /usr/lib/python2.5/site-packages/_renderPM.so)

5. pyRXP xml parser... found version 1.12
        (in /usr/lib/python2.5/site-packages/pyRXP.so)

5. ReportLab commercial package (rlextra)... found version 2.1
        (in /usr/local/lib/rlextra_2_1/rlextra/__init__.pyc)
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