使用 Python 请求在请求之间设置新 cookie [英] Set new cookie between requests with Python Requests

问题描述

我现在正在这样做，但它在最后一行失败，并显示 TypeError: expected string or buffer.

导入请求从 urllib.parse 导入 urlparseurl = '一些网址's = requests.Session()s.headers.update({'Origin':urlparse(url).netloc,推荐人":网址})r = s.get(url)s.cookies['cookie1'] = 25s.cookies['cookie2'] = 25r = s.post(网址，{'param':'value1', 'param2':'value2'},headers={'X-Requested-With':'XMLHttpRequest'})

使用 Session 时更新 cookie 的正确方法是什么?我对 Python 很陌生，所以我可能会混淆一些东西.使用 Python 3.4.1.

追溯:

回溯(最近一次调用最后一次):文件file.py"，第 37 行，在 <module> 中{'param':'value1', 'param2':'value2'}文件/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/sessions.py"，第 498 行，在帖子中return self.request('POST', url, data=data, **kwargs)文件/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/sessions.py"，第 422 行，请求prep = self.prepare_request(req)文件/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/sessions.py"，第360行，在prepare_request中hooks=merge_hooks(request.hooks, self.hooks),文件/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/models.py"，第296行，准备self.prepare_cookies(cookies)文件/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/models.py"，第491行，在prepare_cookiescookie_header = get_cookie_header(self._cookies, self)文件/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/cookies.py"，第 134 行，在 get_cookie_headerjar.add_cookie_header(r)文件/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/http/cookiejar.py"，第 1329 行，在 add_cookie_headerattrs = self._cookie_attrs(cookies)文件/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/http/cookiejar.py"，第 1288 行，在 _cookie_attrsself.non_word_re.search(cookie.value) 和版本 >0):类型错误:预期的字符串或缓冲区

解决方案

Cookie 值是字符串，而不是整数.将它们设置为:

s.cookies['cookie1'] = '25's.cookies['cookie2'] = '25'

演示:

<预><代码>>>>进口请求>>>从 urllib.parse 导入 urlparse>>>url = 'http://httpbin.org/cookies'>>>s = requests.Session()>>>s.headers.update({... 'Origin':urlparse(url).netloc,...推荐人":网址... })>>>r = s.get(url)>>>s.cookies['cookie1'] = '25'>>>s.cookies['cookie2'] = '25'>>>r = s.get(url, headers={'X-Requested-With':'XMLHttpRequest'})>>>打印(r.text){"cookies": {"cookie1": "25", "cookie2": "25"}}

I'm doing this right now, but it fails at that last line with TypeError: expected string or buffer.

import requests
from urllib.parse import urlparse

url = 'some url'

s = requests.Session()
s.headers.update({
    'Origin':urlparse(url).netloc,
    'Referer':url
})


r = s.get(url)

s.cookies['cookie1'] = 25
s.cookies['cookie2'] = 25

r = s.post(
    url,
    {'param':'value1', 'param2':'value2'},
    headers={'X-Requested-With':'XMLHttpRequest'}
)

What's the correct way to update the cookies when using Session? I'm pretty new to Python, so I might have confused something. Using Python 3.4.1.

Traceback:

Traceback (most recent call last):
  File "file.py", line 37, in <module>
    {'param':'value1', 'param2':'value2'}
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/sessions.py", line 498, in post
    return self.request('POST', url, data=data, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/sessions.py", line 422, in request
    prep = self.prepare_request(req)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/sessions.py", line 360, in prepare_request
    hooks=merge_hooks(request.hooks, self.hooks),
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/models.py", line 296, in prepare
    self.prepare_cookies(cookies)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/models.py", line 491, in prepare_cookies
    cookie_header = get_cookie_header(self._cookies, self)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests/cookies.py", line 134, in get_cookie_header
    jar.add_cookie_header(r)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/http/cookiejar.py", line 1329, in add_cookie_header
    attrs = self._cookie_attrs(cookies)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/http/cookiejar.py", line 1288, in _cookie_attrs
    self.non_word_re.search(cookie.value) and version > 0):
TypeError: expected string or buffer

解决方案

Cookie values are strings, not integers. Set them as such:

s.cookies['cookie1'] = '25'
s.cookies['cookie2'] = '25'

Demo:

>>> import requests
>>> from urllib.parse import urlparse
>>> url = 'http://httpbin.org/cookies'
>>> s = requests.Session()
>>> s.headers.update({
...     'Origin':urlparse(url).netloc,
...     'Referer':url
... })
>>> r = s.get(url)
>>> s.cookies['cookie1'] = '25'
>>> s.cookies['cookie2'] = '25'
>>> r = s.get(url, headers={'X-Requested-With':'XMLHttpRequest'})
>>> print(r.text)
{"cookies": {"cookie1": "25", "cookie2": "25"}}

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