From dbe817d0cce5f3eddf463e4a8bcfa02372d2af4d Mon Sep 17 00:00:00 2001
From: samukweku <samueloranyeli@gmail.com>
Date: Wed, 3 May 2023 21:53:22 +1000
Subject: [PATCH] deprecate then

---
 janitor/functions/then.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/janitor/functions/then.py b/janitor/functions/then.py
index d39908d10..3248053b0 100644
--- a/janitor/functions/then.py
+++ b/janitor/functions/then.py
@@ -2,14 +2,25 @@
 from typing import Callable
 import pandas_flavor as pf
 import pandas as pd
+from janitor.utils import refactored_function
 
 
+@pf.register_dataframe_method
+@refactored_function(
+    message="This function will be deprecated in a 1.x release. "
+    "Kindly use `pd.DataFrame.pipe` instead."
+)
 @pf.register_dataframe_method
 def then(df: pd.DataFrame, func: Callable) -> pd.DataFrame:
     """Add an arbitrary function to run in the `pyjanitor` method chain.
 
     This method does not mutate the original DataFrame.
 
+    !!!note
+
+        This function will be deprecated in a 1.x release.
+        Please use `pd.DataFrame.pipe` instead.
+
     Examples:
         A trivial example using a lambda `func`.