Fix editor live validation (#6431)

esphome/yaml_util.py

@@ -417,20 +417,25 @@ def load_yaml(fname: str, clear_secrets: bool = True) -> Any:
     return _load_yaml_internal(fname)
 
 
+def parse_yaml(file_name: str, file_handle: TextIOWrapper) -> Any:
+    """Parse a YAML file."""
+    try:
+        return _load_yaml_internal_with_type(ESPHomeLoader, file_name, file_handle)
+    except EsphomeError:
+        # Loading failed, so we now load with the Python loader which has more
+        # readable exceptions
+        # Rewind the stream so we can try again
+        file_handle.seek(0, 0)
+        return _load_yaml_internal_with_type(
+            ESPHomePurePythonLoader, file_name, file_handle
+        )
+
+
 def _load_yaml_internal(fname: str) -> Any:
     """Load a YAML file."""
     try:
         with open(fname, encoding="utf-8") as f_handle:
-            try:
-                return _load_yaml_internal_with_type(ESPHomeLoader, fname, f_handle)
-            except EsphomeError:
-                # Loading failed, so we now load with the Python loader which has more
-                # readable exceptions
-                # Rewind the stream so we can try again
-                f_handle.seek(0, 0)
-                return _load_yaml_internal_with_type(
-                    ESPHomePurePythonLoader, fname, f_handle
-                )
+            return parse_yaml(fname, f_handle)
     except (UnicodeDecodeError, OSError) as err:
         raise EsphomeError(f"Error reading file {fname}: {err}") from err