xuang7 opened a new issue, #4257:
URL: https://github.com/apache/texera/issues/4257

   ### What happened?
   
   A few visualization operators (BubbleChart/ContourPlot/TernaryPlot) fail at 
runtime after switching to the new Python template rendering. Scala booleans 
are rendered as lowercase true/false, which are invalid in Python and cause a 
crash. The workflow stays in the Running state and no visualization output is 
produced.
   
   Error message: name 'false' is not defined
   
   ### How to reproduce?
   
   1. create a workflow: CSVFileScan -> BubbleChart (same issue occurs for 
ContourPlot and TernaryPlot)
   2. configure the operator with valid columns
   3. run the workflow
   
   ### Version
   
   1.1.0-incubating (Pre-release/Master)
   
   ### Commit Hash (Optional)
   
   _No response_
   
   ### What browsers are you seeing the problem on?
   
   _No response_
   
   ### Relevant log output
   
   ```shell
   
   ```


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