[reportlab-users] table.py None variable error

[Nils Smeds]

In my version of reportlab the following code change was needed. This
happened when I moved from one Fedora Core 14 to Fedeora Core 16.
The array V[] apparently contains None values in some instances in my
application. I notice that in Fedora Core 14 the offending line has been
commented out altogether and replaced by " t = 0 ". So apparently this
problem has bitten others too....

Not sure which solution that is the most correct one, but something needs
to be changed in the source as I understands it.

/Nils

$ diff -p /usr/lib64/python2.7/site-packages/reportlab/platypus/tables.py
/usr/lib64/python2.7/site-packages/reportlab/platypus/tables.py-orig
*** /usr/lib64/python2.7/site-packages/reportlab/platypus/tables.py
2012-03-20 14:51:29.242188950 +0100
--- /usr/lib64/python2.7/site-packages/reportlab/platypus/tables.py-orig
2011-02-09 08:34:11.000000000 +0100
*************** def spanFixDim(V0,V,spanCons,lim=None,FU
*** 202,208 ****
      for (x0,x1),v in spanCons.iteritems():
          if x0>=lim: continue
          x1 += 1
!         t = sum([ (V[x] or 0) +M.get(x,0) for x in xrange(x0,x1)])
          if t>=v-FUZZ: continue      #already good enough
          X = [x for x in xrange(x0,x1) if V0[x] is None] #variable
candidates
          if not X: continue          #something wrong here mate
--- 202,208 ----
      for (x0,x1),v in spanCons.iteritems():
          if x0>=lim: continue
          x1 += 1
!         t = sum([V[x]+M.get(x,0) for x in xrange(x0,x1)])
          if t>=v-FUZZ: continue      #already good enough
          X = [x for x in xrange(x0,x1) if V0[x] is None] #variable
candidates
          if not X: continue          #something wrong here mate


$ rpm -qif /usr/lib64/python2.7/site-packages/reportlab/platypus/tables.py
Name        : python-reportlab
Version     : 2.5
Release     : 3.fc15
Architecture: x86_64
Install Date: Thu 22 Dec 2011 12:57:32 AM CET
Group       : Development/Libraries
Size        : 5699661
License     : BSD
Signature   : RSA/SHA256, Fri 29 Jul 2011 03:34:28 PM CEST, Key ID
067f00b6a82ba4b7
Source RPM  : python-reportlab-2.5-3.fc15.src.rpm
Build Date  : Wed 09 Feb 2011 08:34:41 AM CET
Build Host  : x86-12.phx2.fedoraproject.org
Relocations : (not relocatable)
Packager    : Fedora Project
Vendor      : Fedora Project
URL         : http://www.reportlab.org/
Summary     : Python PDF generation library
Description :
Python PDF generation library.


$ head  /usr/lib64/python2.7/site-packages/reportlab/platypus/tables.py
#Copyright ReportLab Europe Ltd. 2000-2004
#see license.txt for license details
#history
http://www.reportlab.co.uk/cgi-bin/viewcvs.cgi/public/reportlab/trunk/reportlab/platypus/tables.py
__version__=''' $Id: tables.py 3797 2010-10-01 09:09:33Z rgbecker $ '''

__doc__="""
Tables are created by passing the constructor a tuple of column widths, a
tuple of row heights and the data in
row order. Drawing of the table can be controlled by using a TableStyle
instance. This allows control of the
color and weight of the lines (if any), and the font, alignment and padding
of the text.
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