对嵌套字典排序，然后对外部字典排序

nested_dict = {
    'dict1': {'key1': value1, 'key2': value2, ...},
    'dict2': {'key1': value1, 'key2': value2, ...},
    ...
}

sorted_nested_dict = sorted(nested_dict.items(), key=lambda x: x[0])

nested_dict = {
    'dict2': {'key2': 2, 'key1': 1},
    'dict1': {'key2': 2, 'key1': 1},
    'dict3': {'key2': 2, 'key1': 1}
}

sorted_nested_dict = sorted(nested_dict.items(), key=lambda x: x[0])

for key, value in sorted_nested_dict:
    sorted_value = sorted(value.items(), key=lambda x: x[0])
    sorted_dict = dict(sorted_value)
    print(key, sorted_dict)

dict1 {'key1': 1, 'key2': 2}
dict2 {'key1': 1, 'key2': 2}
dict3 {'key1': 1, 'key2': 2}