Python Mechanize : How to input into TextControl and click on ImageControl icon?

Question

我正在尝试将邮政编码信息输入到 http://www.gasbuddy.com/然后使用 Mechanize 单击“搜索”

所以我能够使用以下数据抓取表单:

<TextControl(ctl00$Content$GBZS$txtZip=City, Province or Postal Code...)>
<ImageControl(ctl00$Content$GBZS$btnSearch=)>

我能够将文本插入到 TextControl 中(我假设)，这会将表单更改为:

<TextControl(ctl00$Content$GBZS$txtZip=ABC 123)>
<ImageControl(ctl00$Content$GBZS$btnSearch=)>

使用以下代码:

browser.select_form(nr=0)
browser["ctl00$Content$GBZS$txtZip"] = "ABC 123"

for form in browser.forms():
    print list(browser.forms())[0];

所以我的问题是如何单击 ImageControl？我尝试执行 browser.submit()，但它不起作用。

Answer 1

mechanize 无法提交表单:

• 根本没有提交按钮

• 点击图像控件涉及 JavaScript:

  <input type="image" name="ctl00$Content$GBZS$btnSearch" id="ctl00_Content_GBZS_btnSearch" class="zs_img" src="/images/art/search-84x23-bt.png" alt="Gas Price Search" 
   onclick="javascript:if(btnSearch_click(event) == false){return false;};WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions(&quot;ctl00$Content$GBZS$btnSearch&quot;, &quot;&quot;, false, &quot;&quot;, &quot;Search.aspx&quot;, false, false))" style="border-width:0px;">
  

您可以执行以下操作:

• 只需获取搜索后打开的页面 - 只需将城市名称粘贴到网址中即可。例如，对于纽约市，URL 为:http://www.newyorkgasprices.com/New%20York%20City/index.aspx

  import mechanize
  from urllib2 import quote
  
  url = "http://www.newyorkgasprices.com/%s/index.aspx"
  city = "New York City"
  url = url % quote(url)
  
  browser = mechanize.Browser()
  browser.open(url)
  
  browser.title()
  

• 使用真实浏览器 selenium :

  from selenium import webdriver
  
  browser = webdriver.Firefox()
  browser.get('http://www.gasbuddy.com/')
  
  city = 'New York City'
  
  textinput = browser.find_element_by_id('ctl00_Content_GBZS_txtZip')
  textinput.send_keys(city)
  
  button = browser.find_element_by_id('ctl00_Content_GBZS_btnSearch')
  button.click()
  
  print browser.title
  
  browser.close()
  

两个片段都打印:

'New York City Gas Prices - Find Cheap Gas Prices in New York City, New York'