Always call StubHandler open() when opening StubImageFile

src/PIL/BufrStubImagePlugin.py

@@ -52,10 +52,6 @@ def _open(self) -> None:
         self._mode = "F"
         self._size = 1, 1
 
-        loader = self._load()
-        if loader:
-            loader.open(self)
-
     def _load(self) -> ImageFile.StubHandler | None:
         return _handler
 

src/PIL/GribStubImagePlugin.py

@@ -52,10 +52,6 @@ def _open(self) -> None:
         self._mode = "F"
         self._size = 1, 1
 
-        loader = self._load()
-        if loader:
-            loader.open(self)
-
     def _load(self) -> ImageFile.StubHandler | None:
         return _handler
 

src/PIL/Hdf5StubImagePlugin.py

@@ -52,10 +52,6 @@ def _open(self) -> None:
         self._mode = "F"
         self._size = 1, 1
 
-        loader = self._load()
-        if loader:
-            loader.open(self)
-
     def _load(self) -> ImageFile.StubHandler | None:
         return _handler
 

src/PIL/ImageFile.py

@@ -148,6 +148,10 @@ def __init__(
         try:
             try:
                 self._open()
+
+                if isinstance(self, StubImageFile):
+                    if loader := self._load():
+                        loader.open(self)
             except (
                 IndexError,  # end of data
                 TypeError,  # end of data (ord)

src/PIL/WmfImagePlugin.py

@@ -148,10 +148,6 @@ def _open(self) -> None:
         self._mode = "RGB"
         self._size = size
 
-        loader = self._load()
-        if loader:
-            loader.open(self)
-
     def _load(self) -> ImageFile.StubHandler | None:
         return _handler