avoid deprecated obs.return_type (#146)

* avoid deprecated obs.return_type * Update CHANGELOG.md
PennyLaneAI · Nov 10, 2023 · ad74b16 · ad74b16
1 parent f9fd652
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,9 @@
 
 ### Improvements 🛠
 
+* Use `tape.measurements` instead of `tape.observables` to identify the type of measurement process
+  [(#146)](https://github.com/PennyLaneAI/pennylane-rigetti/pull/146)
+
 ### Breaking changes 💔
 
 ### Deprecations 👋
@@ -16,6 +19,8 @@
 
 This release contains contributions from (in alphabetical order):
 
+Matthew Silverman
+
 ---
 # Release 0.33.0
 

diff --git a/pennylane_rigetti/qpu.py b/pennylane_rigetti/qpu.py
@@ -191,7 +191,7 @@ def expval(self, observable, shot_range=None, bin_size=None):
 
     def execute(self, circuit: QuantumTape, **kwargs):
         self._skip_generate_samples = (
-            all(obs.return_type == Expectation for obs in circuit.observables)
+            all(mp.return_type is Expectation for mp in circuit.measurements)
             and not self.parametric_compilation
         )