Remove unneeded per-method Qt exception handlers

corrscope/gui/__init__.py

@@ -278,15 +278,14 @@ class MainWindow(qw.QMainWindow, Ui_MainWindow):
         assert cfg_path.is_file()
         self.pref.file_dir = str(cfg_path.parent.resolve())
 
-        try:
         # Raises YAML structural exceptions
         cfg = yaml.load(cfg_path)
 
+        try:
             # Raises color getter exceptions
-            # FIXME if error halfway, clear "file path" and load empty model.
             self.load_cfg(cfg, cfg_path)
-
         except Exception as e:
+            # FIXME if error halfway, clear "file path" and load empty model.
             TracebackDialog(self).showMessage(format_stack_trace(e))
             return
 
@@ -452,7 +451,6 @@ class MainWindow(qw.QMainWindow, Ui_MainWindow):
     def play_thread(
         self, outputs: List[IOutputConfig], dlg: Optional["CorrProgressDialog"]
     ):
-        try:
         assert self.model
 
         arg = self._get_args(outputs)
@@ -473,8 +471,6 @@ class MainWindow(qw.QMainWindow, Ui_MainWindow):
         t.error.connect(self.on_play_thread_error)
         t.ffmpeg_missing.connect(self.on_play_thread_ffmpeg_missing)
         t.start()
-        except Exception as e:
-            TracebackDialog(self).showMessage(format_stack_trace(e))
 
     def _get_args(self, outputs: List[IOutputConfig]):
         arg = Arguments(cfg_dir=self.cfg_dir, outputs=outputs)