Python使用orderby库：如何在for循环中打印排序后的列表

Let me break down what's going wrong here and walk you through the fixes:

核心问题：你在遍历JSON字符串，不是排序后的列表 #

When you run json.dumps(sorted(dic, key=asc('BAIRRO').asc('RUA')), indent=2), it converts your sorted list into a formatted JSON string. So when you put that directly into a for loop, you're iterating over individual characters of the string—not the original list items you intended. That's why it's not working as expected.

正确的做法：先保留排序后的列表，再操作 #

Here's how to fix this step by step:

1. Store the sorted list first
   Capture the sorted result in a variable before converting it to JSON:

   sorted_list = sorted(dic, key=asc('BAIRRO').asc('RUA'))
   

2. Iterate over the list directly
   Now you can loop through the actual list items:

   for item in sorted_list:
       # Print each item as formatted JSON
       print(json.dumps(item, indent=2))
       # Or just print the item directly if you don't need JSON formatting
       # print(item)
   

列表推导式的用法（如果需要预处理） #

If you want to pre-generate formatted JSON strings for all items first, you can use a list comprehension:

sorted_list = sorted(dic, key=asc('BAIRRO').asc('RUA'))
formatted_json_items = [json.dumps(item, indent=2) for item in sorted_list]

# Then iterate and print
for json_str in formatted_json_items:
    print(json_str)

为什么你的初始print语句 worked？ #

The original print(json.dumps(...)) worked because you were printing the entire JSON string (which represents the sorted list) as a single unit. The indent=2 just made it human-readable, but it was still one big string under the hood.

内容的提问来源于stack exchange，提问作者Shinomoto Asakura