Fix some fucking shit with importing wx

scripts/pyfa_sim.py

@@ -394,10 +394,14 @@ def _run_http_server(port: int, savepath: str | None) -> None:
                 self.wfile.write(str(e).encode("utf-8"))
                 return
             except Exception as e:
+                import traceback
+                tb = traceback.format_exc()
+                sys.stderr.write(tb)
+                sys.stderr.flush()
                 self.send_response(500)
                 self.send_header("Content-Type", "text/plain; charset=utf-8")
                 self.end_headers()
-                self.wfile.write(str(e).encode("utf-8"))
+                self.wfile.write((str(e) + "\n\n" + tb).encode("utf-8"))
                 return
             self.send_response(200)
             self.send_header("Content-Type", "application/json; charset=utf-8")