Simplify Harness.metadata to Dict

src/wireviz/DataClasses.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-from typing import Optional, List, Tuple, Union
+from typing import Optional, List, Dict, Tuple, Union
 from dataclasses import dataclass, field, InitVar
 from pathlib import Path
 
@@ -32,10 +32,11 @@ OneOrMoreWires = Union[Wire, Tuple[Wire, ...]] # One or a tuple of wires
 
 
 @dataclass
-class Metadata:
-    title: PlainText
-    description: Optional[MultilineHypertext] = None
-    notes: Optional[MultilineHypertext] = None
+class Metadata(Dict):
+    pass
+    # title: PlainText
+    # description: Optional[MultilineHypertext] = None
+    # notes: Optional[MultilineHypertext] = None
 
 
 @dataclass

src/wireviz/wireviz.py

@@ -37,10 +37,13 @@ def parse(yaml_input: str, file_out: (str, Path) = None, return_types: (None, st
 
     # Assign default metadata.title here to avoid needing file_out in Metadata.__post_init__().
     harness = Harness(
-        Metadata(**{'title': Path(file_out).stem, **yaml_data.get('metadata', {})}),
-        Options(**yaml_data.get('options', {})),
+        metadata = yaml_data.get('metadata', {}),
+        options = Options(**yaml_data.get('options', {})),
     )
 
+    if not 'title' in harness.metadata:
+        harness.metadata['title'] = Path(file_out).stem
+
     # add items
     sections = ['connectors', 'cables', 'connections']
     types = [dict, dict, list]