Update file opens to with open(...)

Author: christopher-wild

tests/testing_tests/test_causal_test_engine.py

@@ -26,9 +26,8 @@ def setUp(self) -> None:
         temp_dir_path = create_temp_dir_if_non_existent()
         dag_dot_path = os.path.join(temp_dir_path, "dag.dot")
         dag_dot = """digraph G { A -> C; D -> A; D -> C}"""
-        f = open(dag_dot_path, "w")
-        f.write(dag_dot)
-        f.close()
+        with open(dag_dot_path, "w") as file:
+            file.write(dag_dot)
         self.causal_dag = CausalDAG(dag_dot_path)
 
         # 2. Create Scenario and Causal Specification

tests/testing_tests/test_causal_test_suite.py

@@ -33,9 +33,8 @@ def setUp(self) -> None:
         temp_dir_path = create_temp_dir_if_non_existent()
         dag_dot_path = os.path.join(temp_dir_path, "dag.dot")
         dag_dot = """digraph G { A -> C; D -> A; D -> C}"""
-        f = open(dag_dot_path, "w")
-        f.write(dag_dot)
-        f.close()
+        with open(dag_dot_path, "w") as file:
+            file.write(dag_dot)
 
         np.random.seed(1)
         df = pd.DataFrame({"D": list(np.random.normal(60, 10, 1000))})  # D = exogenous