fixes, DAMARIS3 runs now on Debian 13 trixie

src/data/DataPool.py

@@ -8,11 +8,18 @@ import collections
 import threading
 import traceback
 import io
+if sys.version_info.major == 3 and sys.version_info.minor >= 10:
+
+    from collections.abc import MutableMapping
+else:
+    from collections import MutableMapping
+
+
 from . import ADC_Result
 from . import Accumulation
 from . import MeasurementResult
 
-class DataPool(collections.MutableMapping):
+class DataPool(MutableMapping):
     """
     dictionary with sending change events
     """