diff --git a/examples/groover_hash_collision.py b/examples/groover_hash_collision.py
index d7475e1a..0cc2dfcb 100644
--- a/examples/groover_hash_collision.py
+++ b/examples/groover_hash_collision.py
@@ -8,7 +8,7 @@
 
 def qiskit_simulate(qc):
     qc.measure_all()
-    print(qc.draw('text'))
+    print(qc.draw("text"))
 
     simulator = Aer.get_backend("aer_simulator")
     circ = transpile(qc, simulator)
@@ -55,5 +55,5 @@ def hash(k: Qint4) -> Qint4:
 plt.show()
 
 
-print(hash.circuit().export("circuit", 'qiskit').draw('text'))
+print(hash.circuit().export("circuit", "qiskit").draw("text"))
 # plt.show()
diff --git a/qlasskit/algorithms/groover.py b/qlasskit/algorithms/groover.py
index 5a863f25..09cf2154 100644
--- a/qlasskit/algorithms/groover.py
+++ b/qlasskit/algorithms/groover.py
@@ -97,7 +97,6 @@ def oracle_outer(v: {argt_name}) -> bool:
         ]
         self.qc.h(oracle_qc["_ret_phased"])
 
-
         for i in range(n_iterations):
             self.qc.barrier(label=f"g{i}")
             # self.qc.barrier(label=f"orac_{i}")
diff --git a/qlasskit/algorithms/qalgorithm.py b/qlasskit/algorithms/qalgorithm.py
index f612a804..b8a4eae8 100644
--- a/qlasskit/algorithms/qalgorithm.py
+++ b/qlasskit/algorithms/qalgorithm.py
@@ -50,15 +50,15 @@ def out_qubits(self) -> List[int]:
 
     def interpet_counts(self, counts: Dict[str, int]) -> Dict[Any, int]:
         """Interpet data inside a circuit counts dict"""
-        l = [(self.interpret_outcome(e), c) for (e, c) in counts.items()]
-        d = {}
-        for (e, c) in l:
+        outcomes = [(self.interpret_outcome(e), c) for (e, c) in counts.items()]
+        int_counts: Dict[Any, int] = {}
+        for e, c in outcomes:
             inter = self.interpret_outcome(e)
-            if inter in d:
-                d[inter] += c
+            if inter in int_counts:
+                int_counts[inter] += c
             else:
-                d[inter] = c
-        return d
+                int_counts[inter] = c
+        return int_counts
 
     def export(self, framework: SupportedFramework = "qiskit") -> Any:
         """Export the algorithm to a supported framework"""