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Python 3.6 urllib 类型错误 : can't concat bytes to str

转载 作者:行者123 更新时间:2023-12-04 13:59:58 29 4
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我正在尝试使用 Python 3.6 中的 urllib 从 API 中提取一些 JSON 数据。它需要传递 header 信息以进行授权。这是我的代码:

import urllib.request, json

headers = {"authorization" : "Bearer {authorization_token}"}

with urllib.request.urlopen("{api_url}", data=headers) as url:
data = json.loads(url.read().decode())
print(data)

我得到的错误信息:
Traceback (most recent call last):
File "getter.py", line 5, in <module>
with urllib.request.urlopen("{url}", data=headers) as url:
File "AppData\Local\Programs\Python\Python36-32\lib\urllib\request.py", line 223, in urlopen
return opener.open(url, data, timeout)
File "AppData\Local\Programs\Python\Python36-32\lib\urllib\request.py", line 526, in open
response = self._open(req, data)
File "AppData\Local\Programs\Python\Python36-32\lib\urllib\request.py", line 544, in _open
'_open', req)
File "AppData\Local\Programs\Python\Python36-32\lib\urllib\request.py", line 504, in _call_chain
result = func(*args)
File "AppData\Local\Programs\Python\Python36-32\lib\urllib\request.py", line 1361, in https_open
context=self._context, check_hostname=self._check_hostname)
File "AppData\Local\Programs\Python\Python36-32\lib\urllib\request.py", line 1318, in do_open
encode_chunked=req.has_header('Transfer-encoding'))
File "AppData\Local\Programs\Python\Python36-32\lib\http\client.py", line 1239, in request
self._send_request(method, url, body, headers, encode_chunked)
File "AppData\Local\Programs\Python\Python36-32\lib\http\client.py", line 1285, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "AppData\Local\Programs\Python\Python36-32\lib\http\client.py", line 1234, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "AppData\Local\Programs\Python\Python36-32\lib\http\client.py", line 1064, in _send_output
+ b'\r\n'
TypeError: can't concat bytes to str

Process finished with exit code 1

不太确定这里出了什么问题,我没有输入任何字节,所以我不确定为什么我收到一个错误,告诉我我无法将字节连接到 str。

最佳答案

data参数应该是一个类似字节的对象。您需要执行以下操作:

urllib.request.urlopen({api_url}, data=bytes(json.dumps(headers), encoding="utf-8"))

关于Python 3.6 urllib 类型错误 : can't concat bytes to str,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51182538/

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