urllib TypeError: memoryview: dict object does not have the buffer interface

最新推荐文章于 2024-03-31 18:35:20 发布

转载最新推荐文章于 2024-03-31 18:35:20 发布 · 397 阅读

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原文链接：http://www.cnblogs.com/arhatlohan/p/4249776.html

文章标签：

#python

本文介绍了一个关于使用Python的urllib库发送HTTP请求时遇到的问题及解决方案。当请求头中包含字典类型的数据时，会出现错误。文章详细解释了错误原因，并给出了正确的设置请求头的方法。

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import urllib.request
url = 'site'
headers = {'Authorization' : 'Basic emVkMHg6WWJyYm5mMDA='}
req = urllib.request.Request(url, headers)
response = urllib.request.urlopen(req).getcode()

出现错误：

Traceback (most recent call last):
  File "C:\Program Files\Python33\lib\urllib\request.py", line 1186, in do_request_
    mv = memoryview(data)
TypeError: memoryview: dict object does not have the buffer interface

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/zed/Desktop/sddf.py", line 6, in <module>
    response = urllib.request.urlopen(req).getcode()
  File "C:\Program Files\Python33\lib\urllib\request.py", line 156, in urlopen
    return opener.open(url, data, timeout)
  File "C:\Program Files\Python33\lib\urllib\request.py", line 467, in open
    req = meth(req)
  File "C:\Program Files\Python33\lib\urllib\request.py", line 1191, in do_request_
    data))
ValueError: Content-Length should be specified for iterable data of type <class 'dict'> {'Authorization': 'Basic emVkMHg6WWJyyM5mMDA='}

解决办法：

先看Requset定义：

class Request:
    def __init__(self, url, data=None, headers={},
                 origin_req_host=None, unverifiable=False,
                 method=None):

所以，应该改为

req = urllib.request.Request(url, headers = headers)

转载于:https://www.cnblogs.com/arhatlohan/p/4249776.html