Update q3.py

src/q3.py

@@ -12,3 +12,27 @@ def update_dictionary(dct, key, value):
 # Invoke the function "update_dictionary" using the following scenarios:
 # - {}, "name", "Alice"
 # - {"age": 25}, "age", 26
+
+def update_dictionary(dct, key, value):
+    """
+    Task 1
+    - Create a function that updates a dictionary (dct) with a new key-value pair.
+    - If the key already exists in dct, print the original value, then update its value.
+    - Return the updated dictionary.
+    """
+    # Check if the key already exists
+    if key in dct:
+        print(f"Original value for '{key}': {dct[key]}")
+
+    # Update the dictionary with the new value
+    dct[key] = value
+
+    # Return the updated dictionary
+    return dct
+
+    Task 2
+    # Scenario 1: {}, "name", "Alice"
+print(update_dictionary({}, "name", "Alice"))  # Output: {"name": "Alice"}
+
+# Scenario 2: {"age": 25}, "age", 26
+print(update_dictionary({"age": 25}, "age", 26))  # Output: prints "Original value for 'age': 25" and returns {"age": 26}