From: Michael Orlitzky <michael@orlitzky.com>
Date: Thu, 10 Sep 2009 04:57:39 +0000 (-0400)
Subject: Added an InvalidAreaError class.
X-Git-Url: http://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=67ebbeeaad11d0c1c934c07692e932708aa3aecf;hp=67ebbeeaad11d0c1c934c07692e932708aa3aecf;p=dead%2Fcensus-tools.git

Added an InvalidAreaError class.
Caused the Block class to raise an InvalidAreaError when its total area is zero.
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