diff --git a/Leon_Submissions/Homework3.py b/Leon_Submissions/Homework3.py
index 044634d..4cfce1e 100644
--- a/Leon_Submissions/Homework3.py
+++ b/Leon_Submissions/Homework3.py
@@ -28,4 +28,9 @@ def read_tomato_sales(file_name):
 # textual data. Using bytes allows us to handle various character 
 # encodings. By working with bytes, we can ensure that the data remains in 
 # its raw encoded form, allowing for accurate handling of different 
-# encodings.
\ No newline at end of file
+# encodings.
+
+# In the interactive Python REPL (Read-Eval-Print Loop), the "_" variable 
+# is a special variable that is automatically assigned the result of the 
+# last expression evaluated. The type of the "_" variable reflects the 
+# type of the last expression evaluated in the REPL.