diff --git a/python/datafusion/tests/test_catalog.py b/python/datafusion/tests/test_catalog.py
index 84aa801bc48fd..c68235a4f11fa 100644
--- a/python/datafusion/tests/test_catalog.py
+++ b/python/datafusion/tests/test_catalog.py
@@ -59,15 +59,17 @@ def test_basic(ctx, database):
         ctx.catalog("non-existent")
 
     default = ctx.catalog()
-    assert default.names() == ['public']
+    assert default.names() == ["public"]
 
-    database = default.database('public')
-    assert database.names() == {'csv1', 'csv', 'csv2'}
+    database = default.database("public")
+    assert database.names() == {"csv1", "csv", "csv2"}
 
-    table = database.table('csv')
+    table = database.table("csv")
     assert table.kind == "physical"
-    assert table.schema == pa.schema([
-        pa.field("int", pa.int64(), nullable=False),
-        pa.field("str", pa.string(), nullable=False),
-        pa.field("float", pa.float64(), nullable=False)
-    ])
+    assert table.schema == pa.schema(
+        [
+            pa.field("int", pa.int64(), nullable=False),
+            pa.field("str", pa.string(), nullable=False),
+            pa.field("float", pa.float64(), nullable=False),
+        ]
+    )
diff --git a/python/datafusion/tests/test_dataframe.py b/python/datafusion/tests/test_dataframe.py
index b1b5c843ba112..543e8356cd9ae 100644
--- a/python/datafusion/tests/test_dataframe.py
+++ b/python/datafusion/tests/test_dataframe.py
@@ -18,7 +18,7 @@
 import pyarrow as pa
 import pytest
 
-from datafusion import ExecutionContext
+from datafusion import ExecutionContext, DataFrame
 from datafusion import functions as f
 
 from . import generic as helpers
@@ -64,7 +64,7 @@ def test_filter(df):
 
 
 def test_sort(df):
-    df = df.sort([f.col("b").sort(ascending=False)])
+    df = df.sort(f.col("b").sort(ascending=False))
 
     table = pa.Table.from_batches(df.collect())
     expected = {"a": [3, 2, 1], "b": [6, 5, 4]}
@@ -108,7 +108,7 @@ def test_join():
     df1 = ctx.create_dataframe([[batch]])
 
     df = df.join(df1, on="a", how="inner")
-    df = df.sort([f.col("a").sort(ascending=True)])
+    df = df.sort(f.col("a").sort(ascending=True))
     table = pa.Table.from_batches(df.collect())
 
     expected = {"a": [1, 2], "c": [8, 10], "b": [4, 5]}
@@ -132,3 +132,4 @@ def test_get_dataframe(tmp_path):
     ctx.register_csv("csv", path)
 
     df = ctx.table("csv")
+    assert isinstance(df, DataFrame)