Question

我有很多类似以下内容的json文件：

例如

1.json

{"name": "one", "description": "testDescription...", "comment": ""}

test.json

{"name": "test", "description": "testDescription...", "comment": ""}

two.json

{"name": "two", "description": "testDescription...", "comment": ""}

...

我想将它们全部合并到一个json文件中，例如：

merge_json.json

{"name": "one", "description": "testDescription...", "comment": ""}
{"name": "test", "description": "testDescription...", "comment": ""}
{"name": "two", "description": "testDescription...", "comment": ""}

我有以下代码：

import json
import glob

result = []
for f in glob.glob("*.json"):
    with open(f, "rb") as infile:
        try:
            result.append(json.load(infile))
        except ValueError:
            print(f)

with open("merged_file.json", "wb") as outfile:
    json.dump(result, outfile)

但是它不起作用，出现以下错误：

merged_file.json
Traceback (most recent call last):
  File "Data.py", line 13, in <module>
    json.dump(result, outfile)
 File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python36_64\lib\json\__init__.py", line 180, in dump
   fp.write(chunk)
TypeError: a bytes-like object is required, not 'str'

非常感谢您的帮助。

Answer 1

该模式下的|S10以二进制模式打开文件。

但是with open("merged_file.json", "wb") as outfile:写入一个字符串，而不是字节。这是因为它可能包含unicode字符，并且超出了json.dump的编码范围（例如，到json的编码范围）。您只需删除utf8，即可将输出文件作为文本打开。

它将使用默认文件编码。您也可以使用open命令指定编码。例如：

with open("merged_file.json", "w") as outfile:

出于相同的原因，您还应该以文本模式打开文件：

with open("merged_file.json", "w", encoding="utf8") as outfile:

在一个json文件中合并多个json文件

1 个答案: