我对此很陌生。 我正在尝试从网站下载pdf。该网站要求进行身份验证才能访问。登录后，我将自己重定向到网站的另一部分，并搜索要下载的pdf。为了下载pdf文件，我必须单击网站上的一个小按钮，然后提示打开一个新窗口并打开该窗口，然后开始下载pdf文件。到目前为止，这就是我所拥有的。我已经排除了由于敏感信息而宣布的一些词典。
import requests
with requests.Session() as s:
'This is the url where I have to login
url = 'https://appa.nbcn.ca/welcome/login.do'
r = s.get(url)
r = s.post(url, data=login_data, headers=headers)
'This is the url where i search for the pdf
url = 'https://appa.nbcn.ca/javagon/search/process.do'
r = s.get(url)
r = s.post(url, data=search, headers=headers2)
'Now that I've searched for the pdf, I need to know how to code something that
presses that download button and prompt the new window to start downlaoding
the pdf
with open('C:/Users/clazar/Desktop/JRFQ/yurr.pdf', 'wb') as f:
f.write(r.content)