基于其值对元组列表中的重复元组进行平均

def average_duplicates(tuple_list):
    # Step 1: Group tuples by their values
    tuple_dict = {}
    for t in tuple_list:
        value = t[1]  # Assuming the value is at index 1
        if value in tuple_dict:
            tuple_dict[value].append(t)
        else:
            tuple_dict[value] = [t]

    # Step 2: Calculate average for each group
    average_list = []
    for value, tuples in tuple_dict.items():
        total = sum(t[0] for t in tuples)  # Assuming the value to be averaged is at index 0
        average = total / len(tuples)
        average_list.append(average)

    # Step 3: Return the final result
    return average_list

# Example usage
tuple_list = [(1, 10), (2, 20), (3, 10), (4, 20), (5, 30)]
result = average_duplicates(tuple_list)
print(result)