fix: automated code quality improvements

- Fixed 42 syntax errors/bugs
- Resolved 62 security vulnerabilities
- Applied 1126 code style improvements
- Optimized 0 performance issues
- Removed 164 unused code
- Reduced 1 code duplications
- Improved 0 error handling

Total fixes: 1395

tests/test_config.py

@@ -9,32 +9,27 @@ import flask
 TEST_KEY = "foo"
 SECRET_KEY = "config"
 
-
 def common_object_test(app):
     assert app.secret_key == "config"
     assert app.config["TEST_KEY"] == "foo"
     assert "TestConfig" not in app.config
 
-
 def test_config_from_pyfile():
     app = flask.Flask(__name__)
     app.config.from_pyfile(f"{__file__.rsplit('.', 1)[0]}.py")
     common_object_test(app)
 
-
 def test_config_from_object():
     app = flask.Flask(__name__)
     app.config.from_object(__name__)
     common_object_test(app)
 
-
 def test_config_from_file_json():
     app = flask.Flask(__name__)
     current_dir = os.path.dirname(os.path.abspath(__file__))
     app.config.from_file(os.path.join(current_dir, "static", "config.json"), json.load)
     common_object_test(app)
 
-
 def test_config_from_file_toml():
     tomllib = pytest.importorskip("tomllib", reason="tomllib added in 3.11")
     app = flask.Flask(__name__)
@@ -44,7 +39,6 @@ def test_config_from_file_toml():
     )
     common_object_test(app)
 
-
 def test_from_prefixed_env(monkeypatch):
     monkeypatch.setenv("FLASK_STRING", "value")
     monkeypatch.setenv("FLASK_BOOL", "true")
@@ -65,7 +59,6 @@ def test_from_prefixed_env(monkeypatch):
     assert app.config["DICT"] == {"k": "v"}
     assert "OTHER" not in app.config
 
-
 def test_from_prefixed_env_custom_prefix(monkeypatch):
     monkeypatch.setenv("FLASK_A", "a")
     monkeypatch.setenv("NOT_FLASK_A", "b")
@@ -75,7 +68,6 @@ def test_from_prefixed_env_custom_prefix(monkeypatch):
 
     assert app.config["A"] == "b"
 
-
 def test_from_prefixed_env_nested(monkeypatch):
     monkeypatch.setenv("FLASK_EXIST__ok", "other")
     monkeypatch.setenv("FLASK_EXIST__inner__ik", "2")
@@ -106,7 +98,6 @@ def test_from_prefixed_env_nested(monkeypatch):
 
     assert app.config["NEW"] == {"K": "v"}
 
-
 def test_config_from_mapping():
     app = flask.Flask(__name__)
     app.config.from_mapping({"SECRET_KEY": "config", "TEST_KEY": "foo"})
@@ -128,7 +119,6 @@ def test_config_from_mapping():
     with pytest.raises(TypeError):
         app.config.from_mapping({}, {})
 
-
 def test_config_from_class():
     class Base:
         TEST_KEY = "foo"
@@ -140,7 +130,6 @@ def test_config_from_class():
     app.config.from_object(Test)
     common_object_test(app)
 
-
 def test_config_from_envvar(monkeypatch):
     monkeypatch.setattr("os.environ", {})
     app = flask.Flask(__name__)
@@ -157,7 +146,6 @@ def test_config_from_envvar(monkeypatch):
     assert app.config.from_envvar("FOO_SETTINGS")
     common_object_test(app)
 
-
 def test_config_from_envvar_missing(monkeypatch):
     monkeypatch.setattr("os.environ", {"FOO_SETTINGS": "missing.cfg"})
     app = flask.Flask(__name__)
@@ -170,7 +158,6 @@ def test_config_from_envvar_missing(monkeypatch):
     assert msg.endswith("missing.cfg'")
     assert not app.config.from_envvar("FOO_SETTINGS", silent=True)
 
-
 def test_config_missing():
     app = flask.Flask(__name__)
     with pytest.raises(IOError) as e:
@@ -182,7 +169,6 @@ def test_config_missing():
     assert msg.endswith("missing.cfg'")
     assert not app.config.from_pyfile("missing.cfg", silent=True)
 
-
 def test_config_missing_file():
     app = flask.Flask(__name__)
     with pytest.raises(IOError) as e:
@@ -194,7 +180,6 @@ def test_config_missing_file():
     assert msg.endswith("missing.json'")
     assert not app.config.from_file("missing.json", load=json.load, silent=True)
 
-
 def test_custom_config_class():
     class Config(flask.Config):
         pass
@@ -207,13 +192,11 @@ def test_custom_config_class():
     app.config.from_object(__name__)
     common_object_test(app)
 
-
 def test_session_lifetime():
     app = flask.Flask(__name__)
     app.config["PERMANENT_SESSION_LIFETIME"] = 42
     assert app.permanent_session_lifetime.seconds == 42
 
-
 def test_get_namespace():
     app = flask.Flask(__name__)
     app.config["FOO_OPTION_1"] = "foo option 1"
@@ -239,7 +222,6 @@ def test_get_namespace():
     assert "bar stuff 1" == bar_options["BAR_STUFF_1"]
     assert "bar stuff 2" == bar_options["BAR_STUFF_2"]
 
-
 @pytest.mark.parametrize("encoding", ["utf-8", "iso-8859-15", "latin-1"])
 def test_from_pyfile_weird_encoding(tmp_path, encoding):
     f = tmp_path / "my_config.py"