added num_guess_try_catch.py

Author: traveller502

num_guess_try_catch.py

@@ -1,3 +1,4 @@
+# ...existing code...
 #!/usr/bin/env python3
 
 # Created by: Angelo Garcia
@@ -6,19 +7,22 @@
 
 
 def main():
-    # This function uses a try statement to catch input errors
+    # This function demonstrates validating user input with try/except/finally
 
-    # input
+    # input - prompt the user for the number of students (input returns a string)
     integer_as_string = input("Enter the number of students: ")
     print("")
 
     # Process & output
     try:
+        # Try to convert the input string to an integer
         integer_as_number = int(integer_as_string)
-        print("you entered an integer correctly!")
+        print("You entered an integer correctly!")
     except Exception:
+        # If conversion fails, inform the user the input was not an integer
         print("That was not an integer!")
     finally:
+        # This always runs whether conversion succeeded or failed
         print("Thank you for playing.")