Merge branch 'master' into python-version-update

docs/CHANGELOG.md

@@ -1,5 +1,17 @@
 # Change Log
 
+## [0.3.2](https://github.com/formatc1702/WireViz/tree/v0.3.2) (2021-11-27)
+
+### Hotfix
+
+- Adjust GraphViz generation code for compatibility with v0.18 of the `graphviz` Python package ([#258](https://github.com/formatc1702/WireViz/issues/258), [#262](https://github.com/formatc1702/WireViz/pull/261))
+
+## [0.3.1](https://github.com/formatc1702/WireViz/tree/v0.3.1) (2021-10-25)
+
+### Hotfix
+
+- Assign generic harness title when using WireViz as a module and not specifying an output file name ([#253](https://github.com/formatc1702/WireViz/issues/253), [#254](https://github.com/formatc1702/WireViz/pull/254))
+
 ## [0.3](https://github.com/formatc1702/WireViz/tree/v0.3) (2021-10-11)
 
 ### New features

src/wireviz/Harness.py

@@ -93,8 +93,8 @@ class Harness:
 
     def create_graph(self) -> Graph:
         dot = Graph()
-        dot.body.append(f'// Graph generated by {APP_NAME} {__version__}')
+        dot.body.append(f'// Graph generated by {APP_NAME} {__version__}\n')
-        dot.body.append(f'// {APP_URL}')
+        dot.body.append(f'// {APP_URL}\n')
         dot.attr('graph', rankdir='LR',
                  ranksep='2',
                  bgcolor=wv_colors.translate_color(self.options.bgcolor, "HEX"),

src/wireviz/wireviz.py

@@ -40,8 +40,13 @@ def parse(yaml_input: str, file_out: (str, Path) = None, return_types: (None, st
         options = Options(**yaml_data.get('options', {})),
         tweak = Tweak(**yaml_data.get('tweak', {})),
     )
+
+    # When title is not given, either deduce it from filename, or use default text.
     if 'title' not in harness.metadata:
-        harness.metadata['title'] = Path(file_out).stem
+        if file_out is None:
+            harness.metadata['title'] = "WireViz diagram and BOM"
+        else:
+            harness.metadata['title'] = Path(file_out).stem
 
     # add items
     sections = ['connectors', 'cables', 'connections']