FIX: use dict.get() to retrieve attribute key and return "None" if not available (#200)

* FIX: use dict.get() to retrieve attribute key and return "None" if not available

Author: kmuehlbauer

docs/history.md

@@ -3,6 +3,7 @@
 ## Development version (2024-08-23)
 
 FIX: Notebooks are now conforming to ruff's style checks by [@rcjackson](https://github.com/rcjackson), ({pull}`199`) by [@rcjackson](https://github.com/rcjackson).
+FIX: use dict.get() to retrieve attribute key and return "None" if not available [@kmuehlbauer](https://github.com/kmuehlbauer), ({pull}`200`) by [@kmuehlbauer](https://github.com/kmuehlbauer)
 
 ## 0.6.3 (2024-08-13)
 

xradar/io/backends/odim.py

@@ -307,7 +307,7 @@ def where(self):
         return self._where
 
     def _get_odim_version(self):
-        version = self._root.attrs["Conventions"]
+        version = self._root.attrs.get("Conventions", "None")
         return version
 
     def _get_site_coords(self):