使用Twill从登录页面Python中获取.txt

2023年2月28日 240次阅读

我正在使用Twill检索包含所需.txt数据的页面,以便将它们存储为Excel文件.数据受密码保护,因此我从/ user / login页面登录.

我的代码遇到了这样的问题：它尝试从登录屏幕访问文本页面并打到HTML的砖墙而不是.txt本身.

当我运行登录时：

path = "https://naturalgasintel.com/ext/resources/Data-Feed/Daily-GPI/"
end = "td.txt"

go("http://www.naturalgasintel.com/user/login")
showforms()
fv("2", "user[email]", user_email)
fv("2", "user[password]", user_password)
fv("2", "commit", "Login")

datafilelocation = path + year + "/" + month + "/" + date + end
go(datafilelocation)

当我的代码转到(datafilelocation)时,我得到了这个：

==> at https://www.naturalgasintel.com/user/login?referer=%2Fext%2Fresources%2FData-Feed%2FDaily-GPI%2F2018%2F12%2F20181221td.txt
Out[18]: u'https://www.naturalgasintel.com/user/login?referer=%2Fext%2Fresources%2FData-Feed%2FDaily-GPI%2F2018%2F12%2F20181221td.txt'

因此,当我真正想要访问该页面时,它指向引用者而不是实际文本：

https://naturalgasintel.com/ext/resources/Data-Feed/Daily-GPI/2018/12/20181221td.txt

我使用fv(“2”,“commit”,“Login”)而不是submit()的原因是当我到达页面时它给了我这个：

showforms()

Form name=quick-search (#1)
## ## __Name__________________ __Type___ __ID________ __Value__________________
1     q                        text      q            Search 


Form #2
## ## __Name__________________ __Type___ __ID________ __Value__________________
1     utf8                     hidden    (None)       ✓ 
2     authenticity_token       hidden    (None)       pnFnPGhMomX2Lyh7/U8iGOZKsiQnyicj7BWT ... 
3     referer                  hidden    (None)       https://www.naturalgasintel.com/ext/ ... 
4     popup                    hidden    (None)       false 
5     user[email]              text      user_email    
6     user[password]           password  user_pas ... 
7     user[remember_me]        hidden    (None)       0 
8     user[remember_me]        checkbox  user_rem ... None 
9     commit                   submit    (None)       Login

然后它在我提交()之后告诉我：

Note: submit is using submit button: name="commit", value="Login"

解决这个问题的最佳解决方案是什么？

最佳答案 如果您使用Mechanize而不是Twill可以,请提供以下内容：

import mechanize

username = ""
password = ""
login_post_url = "http://www.naturalgasintel.com/user/login"
internal_url = "https://naturalgasintel.com/ext/resources/Data-Feed/Daily-GPI/2018/12/20181221td.txt"

browser = mechanize.Browser()
browser.open(login_post_url)
browser.select_form(nr = 1)
browser.form['user[email]'] = username
browser.form['user[password]'] = password
browser.submit()

response = browser.open(internal_url)
print response.read()
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