fixed error related to the field

we're using the field `data` for the postMessage whereas the example we based it off of uses `python`. updated to fix the error

Author: teonbrooks

app/utils/pyodide/index.ts

@@ -117,7 +117,7 @@ export const plotTestPlot = async (worker: Worker | null) => {
   }
   // TODO: Figure out how to get image results from pyodide
   return worker.postMessage({
-    data: `plt.plot([1,2,3,4])`,
+    data: `print('hello world')`,
   });
 };
 

app/utils/pyodide/webworker.js

@@ -16,15 +16,15 @@ self.onmessage = async (event) => {
   // make sure loading is done
   await pyodideReadyPromise;
   // Don't bother yet with this line, suppose our API is built in such a way:
-  const { python, ...context } = event.data;
+  const { data, ...context } = event.data;
   // The worker copies the context in its own "memory" (an object mapping name to values)
   for (const key of Object.keys(context)) {
     self[key] = context[key];
   }
   // Now is the easy part, the one that is similar to working in the main thread:
   try {
     self.postMessage({
-      results: await self.pyodide.runPythonAsync(python),
+      results: await self.pyodide.runPythonAsync(data),
     });
   } catch (error) {
     self.postMessage({ error: error.message });