fix(e2e_reader.py): makes exception formatting compatible with python…

… < 3.10

src/eyepy/core/eyeenface.py

@@ -14,7 +14,7 @@ class EyeEnface:
     """ """
 
     def __init__(self, data: npt.NDArray[np.int_],
-                 meta: EyeEnfaceMeta) -> None:
+                 meta: "EyeEnfaceMeta") -> None:
         """
 
         Args:

src/eyepy/io/he/e2e_reader.py

@@ -4,6 +4,7 @@
 from io import BufferedReader
 import logging
 from pathlib import Path
+import sys
 from textwrap import indent
 import traceback
 from typing import Any, Dict, List, Optional, Tuple, Union
@@ -928,7 +929,10 @@ def volume(self) -> EyeVolume:
             try:
                 return s.get_volume()
             except Exception as e:
-                logger.debug("".join(traceback.format_exception(e)))
+                # for compatibility with python <= 3.9, later work with only the exception as argument for format_exception
+                exc_type, exc_value, exc_tb = sys.exc_info()
+                logger.debug("".join(
+                    traceback.format_exception(exc_type, exc_value, exc_tb)))
         raise ValueError(
             "No Series in the E2E file can be parsed to a an EyeVolume object. You might be able to extract information manually from the E2ESeries objects (e2ereader.series)"
         )