reader error: untangle generic from unsupported format errors

3 files changed, 3 insertions, 3 deletions

diff --git a/bsie/reader/exif.py b/bsie/reader/exif.py
index 8c74462..2d0428b 100644
--- a/bsie/reader/exif.py
+++ b/bsie/reader/exif.py
@@ -38,7 +38,7 @@ class Exif(base.Reader):
             img = pyexiv2.Image(path)
             # read metadata
             return img.read_exif()
-        except TypeError as err:
+        except (TypeError, OSError, RuntimeError) as err:
             raise errors.ReaderError(path) from err
 
 ## EOF ##
diff --git a/bsie/reader/preview/_pillow.py b/bsie/reader/preview/_pillow.py
index 15c1c6d..2b797c6 100644
--- a/bsie/reader/preview/_pillow.py
+++ b/bsie/reader/preview/_pillow.py
@@ -33,7 +33,7 @@ class PillowPreviewReader(base.Reader):
         except PIL.UnidentifiedImageError as err:
             # failed to open, skip file
             raise errors.UnsupportedFileFormatError(path) from err
-        except IOError as err:
+        except OSError as err:
             raise errors.ReaderError(path) from err
 
 # EOF ##
diff --git a/bsie/utils/errors.py b/bsie/utils/errors.py
index e71fc60..7c7e6ed 100644
--- a/bsie/utils/errors.py
+++ b/bsie/utils/errors.py
@@ -38,7 +38,7 @@ class UnreachableError(ProgrammingError):
 class ParserError(_BSIEError):
     """Failed to parse due to invalid syntax or structures."""
 
-class UnsupportedFileFormatError(ReaderError):
+class UnsupportedFileFormatError(_BSIEError):
     """Failed to read a file format."""
 
 ## EOF ##