[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

mypy/json_bench.py

@@ -128,8 +128,7 @@ def run_standard_benchmarks() -> None:
 
     # Benchmark 3: Large dictionary (simulating large cache)
     large_dict = {
-        f"key_{i}": {"nested": {"value": i, "data": f"string_{i}" * 10}}
-        for i in range(1000)
+        f"key_{i}": {"nested": {"value": i, "data": f"string_{i}" * 10}} for i in range(1000)
     }
     print("Benchmark 3: Large dictionary (1000 entries)")
     results3 = compare_serialization_performance(large_dict, iterations=100)

mypy/test/test_json_serialization.py

@@ -6,7 +6,6 @@
 
 from __future__ import annotations
 
-import sys
 import unittest
 from typing import Any
 
@@ -91,13 +90,7 @@ def test_unicode_strings(self) -> None:
 
     def test_special_values(self) -> None:
         """Test special JSON values."""
-        obj = {
-            "null": None,
-            "true": True,
-            "false": False,
-            "empty_list": [],
-            "empty_dict": {},
-        }
+        obj = {"null": None, "true": True, "false": False, "empty_list": [], "empty_dict": {}}
         serialized = json_dumps(obj)
         deserialized = json_loads(serialized)
         self.assertEqual(deserialized, obj)