Fix some type hints

auto_editor/ffwrapper.py

@@ -239,10 +239,13 @@ def initFileInfo(path: str, ffmpeg: FFmpeg, log: Log) -> FileInfo:
             log.debug("Unexpected ffprobe shape")
 
         if v.sample_aspect_ratio is None:
-            try:
-                sar = Fraction(_sar.replace(":", "/"))
-            except Exception:
+            if _sar is None:
                 sar = Fraction(1)
+            else:
+                try:
+                    sar = Fraction(_sar.replace(":", "/"))
+                except Exception:
+                    sar = Fraction(1)
         else:
             sar = v.sample_aspect_ratio
 

auto_editor/lang/palet.py

@@ -510,7 +510,7 @@ def initOutPort(name: str) -> OutputPort | Literal[False]:
     return OutputPort(name, port, port.write, False)
 
 
-def raise_(msg: str) -> NoReturn:
+def raise_(msg: str | Exception) -> NoReturn:
     raise MyError(msg)
 
 
@@ -1470,7 +1470,10 @@ def edit_all() -> np.ndarray:
 
 
 def edit_audio(
-    threshold: float = 0.04, stream: object = Sym("all"), mincut: int = 6, minclip: int = 3
+    threshold: float = 0.04,
+    stream: object = Sym("all"),
+    mincut: int = 6,
+    minclip: int = 3,
 ) -> np.ndarray:
     if "@levels" not in env or "@filesetup" not in env:
         raise MyError("Can't use `audio` if there's no input media")

auto_editor/render/video.py

@@ -97,6 +97,7 @@ def make_image_cache(tl: v3) -> dict[tuple[FileInfo, int], np.ndarray]:
         for obj in clip:
             if isinstance(obj, TlImage) and obj.src not in img_cache:
                 with av.open(obj.src.path) as cn:
+                    assert isinstance(cn, av.InputContainer)
                     my_stream = cn.streams.video[0]
                     for frame in cn.decode(my_stream):
                         if obj.width != 0: