The error object doesn't have Error & traceback properties.

[varun-liftoff]

Bug
I am trying to display a proper error message but the whole traceback is being printed

Python code
raise Exception("Error sample")

Javascript code

const messages = await PythonShell.run("script.py", options);
console.log("File Validated Successfully");
console.log(`Results - ${messages}`);

Expected behavior
Exception: Error Sample

Actual behavior
Whole traceback is printed. When I checked the error object in Javascript, it looks like this -

{
  executable: 'python3',
  options: [ '-u' ],
  script: 'script.py',
  args: [],
  exitCode: 1,
  logs: []
}

Other Information

• OS: [Sonoma 14.6.1]
• Python Version [3.9.8]
• Node Version [22.4.1]

[alceops]

I opened a focused fix for this here: #323

It updates traceback parsing when stderr contains prefix log lines before the traceback header and includes a regression test for the reported shape.