Updates

modules/number_system/grouping_techniques.py

@@ -46,7 +46,7 @@ def generate_question():
         elif from_base == 8 and to_base == 2:
             # Convert octal to binary
             integer_part, *fraction_part = number.split('.')
-            integer_result = bin(int(integer_part, 8))[2:]
+            integer_result = ''.join([bin(int(digit, 8))[2:].zfill(3) for digit in integer_part])
             if fraction_part:
                 fraction_result = ''.join([bin(int(digit, 8))[2:].zfill(3) for digit in fraction_part[0]])
                 return f"{integer_result}.{fraction_result}"
@@ -54,7 +54,7 @@ def generate_question():
         elif from_base == 16 and to_base == 2:
             # Convert hexadecimal to binary
             integer_part, *fraction_part = number.split('.')
-            integer_result = bin(int(integer_part, 16))[2:]
+            integer_result = ''.join([bin(int(digit, 16))[2:].zfill(4) for digit in integer_part])
             if fraction_part:
                 fraction_result = ''.join([bin(int(digit, 16))[2:].zfill(4) for digit in fraction_part[0]])
                 return f"{integer_result}.{fraction_result}"
@@ -65,15 +65,17 @@ def generate_question():
 
     # Generate incorrect answers ensuring they are unique and valid
     while len(options) < 4:
-        if to_base == 8:
-            invalid_number = ''.join(random.choice('01234567') for _ in range(len(correct_answer.replace('.', ''))))
-        elif to_base == 16:
-            invalid_number = ''.join(random.choice('0123456789ABCDEF') for _ in range(len(correct_answer.replace('.', ''))))
-        else:
-            invalid_number = ''.join(random.choice('01') for _ in range(len(correct_answer.replace('.', ''))))
+        if from_base == 2:
+            invalid_number = ''.join(random.choice('01') for _ in range(len(number.replace('.', ''))))
+        elif from_base == 8:
+            invalid_number = ''.join(random.choice('01234567') for _ in range(len(number.replace('.', ''))))
+        elif from_base == 16:
+            invalid_number = ''.join(random.choice('0123456789ABCDEF') for _ in range(len(number.replace('.', ''))))
         
-        invalid_number = group_conversion(invalid_number, from_base, to_base)
-        options.add(invalid_number)
+        # Generate the corresponding incorrect conversion
+        invalid_converted_number = group_conversion(invalid_number, from_base, to_base)
+        if invalid_converted_number != correct_answer:
+            options.add(invalid_converted_number)
 
     options = list(options)
     random.shuffle(options)