but wait--there is better way to explore parse tree structures figure - shows the parse tree generated for the string ( )displayed in pytreethe tree visualization gui described at the end of this works only because the parser module builds the parse tree explicitly (parser evaluates during parse insteadand because pytree' code is generic and reusable figure - pytree view of parse tree built for ( if you read the last you'll recall that pytree can draw most any tree data structurebut it is preconfigured to handle binary search trees and the expression parse trees we're studying in this for parse treesclicking on nodes in displayed parse tree evaluates the subtree rooted there text and language