有没有办法跟踪python中修改过的字典条目？

import copy

original_dict = {'a': 1, 'b': 2, 'c': 3}
tracked_dict = copy.deepcopy(original_dict)

# 修改字典的条目
tracked_dict['a'] = 10
tracked_dict['d'] = 4

# 比较原始字典和修改后的字典
modified_keys = []
for key in original_dict.keys():
    if original_dict[key] != tracked_dict[key]:
        modified_keys.append(key)

print("修改过的字典条目：", modified_keys)