code sample for pandas-dev#41760

Author: simonjayhawkins

bisect/41760.py

@@ -0,0 +1,18 @@
+import pandas as pd
+
+print(pd.__version__)
+
+d = {
+    "num_legs": [4, 4, 2, 2, 8],
+    "num_wings": [0, 0, 2, 2, 0],
+    "class": ["mammal", "mammal", "mammal", "bird", "insect"],
+    "animal": ["cat", "dog", "bat", "penguin", "spider"],
+    "locomotion": ["walks", "walks", "flies", "walks", "walks"],
+}
+df = pd.DataFrame(data=d)
+df = df.set_index(["class", "animal", "locomotion"])
+df = df.transpose()
+print(df)
+
+result = df.xs(["mammal", "bird"], drop_level=False, axis=1)
+print(result)