diff --git a/altair/utils/__init__.py b/altair/utils/__init__.py
index dba1e1f81..1e2be13a6 100644
--- a/altair/utils/__init__.py
+++ b/altair/utils/__init__.py
@@ -16,17 +16,17 @@
 
 
 __all__ = (
-    "infer_vegalite_type",
+    "AltairDeprecationWarning",
+    "PluginRegistry",
+    "SchemaBase",
+    "Undefined",
+    "display_traceback",
     "infer_encoding_types",
-    "sanitize_dataframe",
+    "infer_vegalite_type",
+    "parse_shorthand",
     "sanitize_arrow_table",
+    "sanitize_dataframe",
     "spec_to_html",
-    "parse_shorthand",
-    "use_signature",
     "update_nested",
-    "display_traceback",
-    "AltairDeprecationWarning",
-    "SchemaBase",
-    "Undefined",
-    "PluginRegistry",
+    "use_signature",
 )
diff --git a/altair/utils/core.py b/altair/utils/core.py
index 29839f705..95b382aa3 100644
--- a/altair/utils/core.py
+++ b/altair/utils/core.py
@@ -418,7 +418,7 @@ def to_list_if_array(val):
             col = df[col_name]
             bad_values = col.isnull() | np.isinf(col)
             df[col_name] = col.astype(object).where(~bad_values, None)
-        elif dtype == object:
+        elif dtype == object:  # noqa: E721
             # Convert numpy arrays saved as objects to lists
             # Arrays are not JSON serializable
             col = df[col_name].astype(object).apply(to_list_if_array)
diff --git a/altair/utils/schemapi.py b/altair/utils/schemapi.py
index 01170c6a6..d31b9ff0c 100644
--- a/altair/utils/schemapi.py
+++ b/altair/utils/schemapi.py
@@ -641,7 +641,7 @@ def split_into_equal_parts(n: int, p: int) -> List[int]:
         for ch in column_heights:
             param_names_columns.append(param_names[last_end_idx : last_end_idx + ch])
             column_max_widths.append(
-                max([len(param_name) for param_name in param_names_columns[-1]])
+                max(len(param_name) for param_name in param_names_columns[-1])
             )
             last_end_idx = ch + last_end_idx
 
diff --git a/altair/vegalite/data.py b/altair/vegalite/data.py
index fbeda0fee..6db60a693 100644
--- a/altair/vegalite/data.py
+++ b/altair/vegalite/data.py
@@ -36,14 +36,14 @@ def disable_max_rows(self) -> PluginEnabler:
 __all__ = (
     "DataTransformerRegistry",
     "MaxRowsError",
+    "check_data_type",
     "curry",
-    "sanitize_dataframe",
     "default_data_transformer",
     "limit_rows",
     "pipe",
     "sample",
+    "sanitize_dataframe",
     "to_csv",
     "to_json",
     "to_values",
-    "check_data_type",
 )
diff --git a/altair/vegalite/display.py b/altair/vegalite/display.py
index 1f3a13b46..d146c53c7 100644
--- a/altair/vegalite/display.py
+++ b/altair/vegalite/display.py
@@ -8,10 +8,10 @@
 
 
 __all__ = (
+    "DefaultRendererReturnType",
     "Displayable",
+    "HTMLRenderer",
+    "RendererRegistry",
     "default_renderer_base",
     "json_renderer_base",
-    "RendererRegistry",
-    "HTMLRenderer",
-    "DefaultRendererReturnType",
 )
diff --git a/altair/vegalite/v5/api.py b/altair/vegalite/v5/api.py
index 9164d0bbf..839b93651 100644
--- a/altair/vegalite/v5/api.py
+++ b/altair/vegalite/v5/api.py
@@ -3840,10 +3840,7 @@ def _needs_name(subchart):
         return False
 
     # Variable parameters won't receive a views property.
-    if all(isinstance(p, core.VariableParameter) for p in subchart.params):
-        return False
-
-    return True
+    return not all(isinstance(p, core.VariableParameter) for p in subchart.params)
 
 
 # Convert SelectionParameters to TopLevelSelectionParameters with a views property.
diff --git a/altair/vegalite/v5/data.py b/altair/vegalite/v5/data.py
index 1e47db526..8846efb83 100644
--- a/altair/vegalite/v5/data.py
+++ b/altair/vegalite/v5/data.py
@@ -35,6 +35,7 @@
 __all__ = (
     "MaxRowsError",
     "curry",
+    "data_transformers",
     "default_data_transformer",
     "limit_rows",
     "pipe",
@@ -42,6 +43,5 @@
     "to_csv",
     "to_json",
     "to_values",
-    "data_transformers",
     "vegafusion_data_transformer",
 )
diff --git a/tests/vegalite/v5/test_params.py b/tests/vegalite/v5/test_params.py
index 90dffe9f2..d9f61b8c9 100644
--- a/tests/vegalite/v5/test_params.py
+++ b/tests/vegalite/v5/test_params.py
@@ -112,8 +112,8 @@ def test_parameter_naming():
     assert res
 
     num = int(res[1])
-    assert prm1.param.name == f"param_{num+1}"
-    assert prm2.param.name == f"param_{num+2}"
+    assert prm1.param.name == f"param_{num + 1}"
+    assert prm2.param.name == f"param_{num + 2}"
 
 
 def test_selection_expression():
diff --git a/tools/generate_schema_wrapper.py b/tools/generate_schema_wrapper.py
index 8abe847d6..5527f1a9b 100644
--- a/tools/generate_schema_wrapper.py
+++ b/tools/generate_schema_wrapper.py
@@ -426,7 +426,7 @@ def recursive_dict_update(schema: dict, root: dict, def_dict: dict) -> None:
 
 
 def get_field_datum_value_defs(propschema: SchemaInfo, root: dict) -> dict:
-    def_dict: Dict[str, Optional[str]] = {k: None for k in ("field", "datum", "value")}
+    def_dict: Dict[str, Optional[str]] = dict.fromkeys(("field", "datum", "value"))
     schema = propschema.schema
     if propschema.is_reference() and "properties" in schema:
         if "field" in schema["properties"]:
diff --git a/tools/schemapi/__init__.py b/tools/schemapi/__init__.py
index f287ad3fb..fc62cce6c 100644
--- a/tools/schemapi/__init__.py
+++ b/tools/schemapi/__init__.py
@@ -6,4 +6,4 @@
 from .utils import SchemaInfo
 
 
-__all__ = ("SchemaBase", "Undefined", "SchemaInfo")
+__all__ = ("SchemaBase", "SchemaInfo", "Undefined")
diff --git a/tools/schemapi/schemapi.py b/tools/schemapi/schemapi.py
index 7b4460b6a..9ae557fbe 100644
--- a/tools/schemapi/schemapi.py
+++ b/tools/schemapi/schemapi.py
@@ -639,7 +639,7 @@ def split_into_equal_parts(n: int, p: int) -> List[int]:
         for ch in column_heights:
             param_names_columns.append(param_names[last_end_idx : last_end_idx + ch])
             column_max_widths.append(
-                max([len(param_name) for param_name in param_names_columns[-1]])
+                max(len(param_name) for param_name in param_names_columns[-1])
             )
             last_end_idx = ch + last_end_idx