make ModelLocalSource comparisons work across platforms

invokeai/app/services/model_install/model_install_base.py

@@ -31,18 +31,34 @@ class UnknownInstallJobException(Exception):
 
 
 class StringLikeSource(BaseModel):
-    """Base class for model sources, implements functions that lets the source be sorted and indexed."""
+    """
+    Base class for model sources, implements functions that lets the source be sorted and indexed.
+
+    These shenanigans let this stuff work:
+
+      source1 = LocalModelSource(path='C:/users/mort/foo.safetensors')
+      mydict = {source1: 'model 1'}
+      assert mydict['C:/users/mort/foo.safetensors'] == 'model 1'
+      assert mydict[LocalModelSource(path='C:/users/mort/foo.safetensors')] == 'model 1'
+
+      source2 = LocalModelSource(path=Path('C:/users/mort/foo.safetensors'))
+      assert source1 == source2
+      assert source1 == 'C:/users/mort/foo.safetensors'
+    """
 
     def __hash__(self) -> int:
         """Return hash of the path field, for indexing."""
         return hash(str(self))
 
-    def __lt__(self, other: Any) -> int:
+    def __lt__(self, other: object) -> int:
         """Return comparison of the stringified version, for sorting."""
         return str(self) < str(other)
 
-    def __eq__(self, other: Any) -> bool:
+    def __eq__(self, other: object) -> bool:
         """Return equality on the stringified version."""
+        if isinstance(other, Path):
+            return str(self) == other.as_posix()
+        else:
             return str(self) == str(other)