Fix for #570

osxphotos/photoinfo.py

@@ -725,8 +725,10 @@ class PhotoInfo:
                 self._uti_original = self.uti
             elif self._db._photos_ver >= 7:
                 # Monterey+
-                self._uti_original = get_uti_for_extension(
+                # there are some cases with UTI_original is None (photo imported with no extension) so fallback to UTI and hope it's right
-                    pathlib.Path(self.original_filename).suffix
+                self._uti_original = (
+                    get_uti_for_extension(pathlib.Path(self.original_filename).suffix)
+                    or self.uti
                 )
             else:
                 self._uti_original = self._info["UTI_original"]
@@ -1025,7 +1027,7 @@ class PhotoInfo:
     @property
     def israw(self):
         """returns True if photo is a raw image. For images with an associated RAW+JPEG pair, see has_raw"""
-        return "raw-image" in self.uti_original
+        return "raw-image" in self.uti_original if self.uti_original else False
 
     @property
     def raw_original(self):

osxphotos/photokit.py

@@ -520,7 +520,8 @@ class PhotoAsset:
                                 == Photos.PHAssetResourceTypeAlternatePhoto
                             ):
                                 data = self._request_resource_data(resource)
-                                ext = pathlib.Path(self.raw_filename).suffix[1:]
+                                suffix = pathlib.Path(self.raw_filename).suffix
+                                ext = suffix[1:] if suffix else ""
                                 break
                         else:
                             raise PhotoKitExportError(

osxphotos/uti.py

@@ -591,6 +591,9 @@ def get_preferred_uti_extension(uti):
 def get_uti_for_extension(extension):
     """get UTI for a given file extension"""
 
+    if not extension:
+        return None
+
     # accepts extension with or without leading 0
     if extension[0] == ".":
         extension = extension[1:]