correct logic for seek

2-file-and-error-handling/08_uncharted_files.py

@@ -1,30 +1,30 @@
-# Uncharted Files 📂
-# Codédex
+# 1. Create the file and write the original secret message
+sent_message = 'Hey there! This is a secret message.'
 
-# Task 1: The Secret Message
-sent_message = "Hey there! This is a secret message."
-
-# Save the sent message to a file
 with open('sent_message.txt', 'w') as file:
     file.write(sent_message)
 
-# Task 2: Simulate Unsending the Message
+# 2. The "Unsend" Process: Read, seek, overwrite, and truncate
 with open('sent_message.txt', 'r+') as file:
     # Read the sent message from the file
     original_message = file.read()
-
-    # Move the cursor to the beginning of the file
+    
+    # Move the cursor back to the beginning (0) so we can overwrite
     file.seek(0)
-
+    
     # Modify the message to simulate unsending
-    unsent_message = "This message has been unsent."
-
-    # Truncate the file to the length of the modified message
-    file.truncate(len(unsent_message))
-
-    # Write the modified message to the file
+    unsent_message = 'This message has been unsent.'
     file.write(unsent_message)
+
+    # Use .truncate() to chop off any leftover characters from the old message
+    file.truncate(len(unsent_message)) 
+
+    # 3. The Verification: Move the cursor back to the beginning ONE MORE TIME
+    file.seek(0)
+
+    # Read exactly what is currently inside the file
+    final_file_content = file.read()
 
-# Display the modified message
-print("Original Message:", original_message)
-print("Unsent Message:", unsent_message)
+# 4. Print the results!
+print("What the file used to say:", original_message)
+print("What the file says now:", final_file_content)