Try 3

plugwise/util.py

@@ -216,13 +216,19 @@ def format_measure(measure: str, unit: str) -> float | int:
 def get_vendor_name(module: etree, model_data: ModuleData) -> ModuleData:
     """Helper-function for _get_model_data()."""
     if (vendor_name := module.find("vendor_name").text) is not None:
-        model_data["vendor_name"] = vendor_name.decode("utf-8")
+        model_data["vendor_name"] = parse_escapes(vendor_name)
         if "Plugwise" in vendor_name:
             model_data["vendor_name"] = vendor_name.split(" ", 1)[0]
 
     return model_data
 
 
+def parse_escapes(text):
+    """Helper-function for get_vendor_name()."""
+    fixed_escapes = re.sub(r'(?<!\\)(\\\\)*("|\\$)', r'\\\1\2', text)
+    return ast.literal_eval(f'"{fixed_escapes}"')
+
+
 def power_data_energy_diff(
     measurement: str,
     net_string: SensorType,