comparison markup/output.py @ 192:cda3bdfc19ed

Expression evaluation now differentiates between undefined variables and variables that are defined but set to `None`.
author cmlenz
date Wed, 23 Aug 2006 17:49:14 +0000
parents 8fb7df2e1281
children 50eab0469148
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191:929ef2913b87 192:cda3bdfc19ed
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