code sample for pandas-dev#41997

simonjayhawkins · simonjayhawkins · commit e14556ae86ab · 2021-06-14T12:22:12.000+01:00
diff --git a/bisect/41997.py b/bisect/41997.py
@@ -0,0 +1,11 @@
+# 1.3: (intended?) Behavior change with empty apply #41997
+
+import pandas as pd
+
+print(pd.__version__)
+
+df = pd.DataFrame(columns=["a", "b"])
+
+df["a"] = df.apply(lambda x: x["a"], axis=1)
+
+print(df)
