Continuing modernization

intern/object_mix.py

@@ -31,7 +31,7 @@ def adm_object_rendering_context(scene: bpy.types.Scene):
 
 
 class ObjectMix:
-    def __init__(self, sources: List[bpy.types.Speaker],
+    def __init__(self, sources: List[bpy.types.Object],
                  scene: bpy.types.Scene, base_dir: str):
         self.sources = sources
         self.intermediate_filename = None
@@ -65,6 +65,7 @@ class ObjectMix:
 
     @property
     def mixdown_file_handle(self):
+        assert self.mixdown_filename
         if self._mixdown_file_handle is None:
             self._mixdown_file_handle = open(self.mixdown_filename, 'rb')
 
@@ -146,7 +147,7 @@ class ObjectMixPool:
     def __enter__(self):
         return self
 
-    def __exit__(self, exc_type, exc_val, exc_tb):
+    def __exit__(self, _exc_type, _exc_val, _exc_tb):
         for mix in self.object_mixes:
             mix.rm_mixdown()
 
@@ -156,7 +157,8 @@ class ObjectMixPool:
         return min(lengths)
 
 
-def object_mixes_from_source_groups(groups: List[List[bpy.types.Speaker]], scene, base_dir):
+def object_mixes_from_source_groups(groups: List[List[bpy.types.Object]], 
+                                    scene: bpy.types.Scene, base_dir: str):
     mixes = []
     for group in groups:
         mixes.append(ObjectMix(sources=group, scene=scene, base_dir=base_dir))