ordering

Author: jreback

pandas/tests/frame/test_explode.py

@@ -67,7 +67,7 @@ def test_usecase():
     # explode a single column
     # gh-10511
     df = pd.DataFrame(
-        [[11, range(5), 10], [22, range(3), 20]], columns=["A", "B", "C"]
+        [[11, range(5), 10], [22, range(3), 20]], columns=list("ABC")
     ).set_index("C")
     result = df.explode("B")
 

pandas/tests/series/test_explode.py

@@ -83,12 +83,17 @@ def non_object_dtype(s):
 
 def test_typical_usecase():
 
-    df = pd.DataFrame([{"var1": "a,b,c", "var2": 1}, {"var1": "d,e,f", "var2": 2}])
+    df = pd.DataFrame(
+        [{"var1": "a,b,c", "var2": 1}, {"var1": "d,e,f", "var2": 2}],
+        columns=["var1", "var2"],
+    )
     exploded = df.var1.str.split(",").explode()
     exploded
     result = df[["var2"]].join(exploded)
     expected = pd.DataFrame(
-        {"var2": [1, 1, 1, 2, 2, 2], "var1": list("abcdef")}, index=[0, 0, 0, 1, 1, 1]
+        {"var2": [1, 1, 1, 2, 2, 2], "var1": list("abcdef")},
+        columns=["var2", "var1"],
+        index=[0, 0, 0, 1, 1, 1],
     )
     tm.assert_frame_equal(result, expected)