diff --git a/python/sdist/amici/numpy.py b/python/sdist/amici/numpy.py
index 1566b7654c..b84e52cc2b 100644
--- a/python/sdist/amici/numpy.py
+++ b/python/sdist/amici/numpy.py
@@ -310,6 +310,10 @@ def __getitem__(
 
         return super().__getitem__(item)
 
+    def __repr__(self):
+        status = amici.simulation_status_to_str(self._swigptr.status)
+        return f"<{self.__class__.__name__}(id={self._swigptr.id!r}, status={status})>"
+
     def by_id(
         self, entity_id: str, field: str = None, model: Model = None
     ) -> np.array:
@@ -359,6 +363,7 @@ class ExpDataView(SwigPtrView):
     """
 
     _field_names = [
+        "ts",
         "observedData",
         "observedDataStdDev",
         "observedEvents",
@@ -379,7 +384,9 @@ def __init__(self, edata: Union[ExpDataPtr, ExpData]):
                 f"Unsupported pointer {type(edata)}, must be"
                 f"amici.ExpDataPtr!"
             )
-        self._field_dimensions = {  # observables
+        self._field_dimensions = {
+            "ts": [edata.nt()],
+            # observables
             "observedData": [edata.nt(), edata.nytrue()],
             "observedDataStdDev": [edata.nt(), edata.nytrue()],
             # event observables
@@ -394,6 +401,7 @@ def __init__(self, edata: Union[ExpDataPtr, ExpData]):
                 len(edata.fixedParametersPreequilibration)
             ],
         }
+        edata.ts = edata.ts_
         edata.observedData = edata.getObservedData()
         edata.observedDataStdDev = edata.getObservedDataStdDev()
         edata.observedEvents = edata.getObservedEvents()
diff --git a/swig/edata.i b/swig/edata.i
index 86f2df1365..f2f7d0da8a 100644
--- a/swig/edata.i
+++ b/swig/edata.i
@@ -76,11 +76,12 @@ def __repr__(self):
     return _edata_repr(self)
 
 def __eq__(self, other):
-    return isinstance(other, self.__class__) and __eq__(self, other)
+    return other.__class__ == self.__class__ and __eq__(self, other)
 
 def __deepcopy__(self, memo):
     # invoke copy constructor
     return type(self)(self)
+
 %}
 };
 %extend std::unique_ptr<amici::ExpData> {