why python selenium get the empty page_source?

[Zhe Lee]

I try to simulate the buy item operation on the link below. (Need login in first)

[taobao_item_link](https://detail.tmall.com/item.htm?spm=a230r.1.14.33.628a41b3IQqugE&id=534808356122&ns=1&abbucket=8)

And after you click the button below. 

img_link:


The link will jump to a [new link](https://buy.taobao.com/auction/buy_now.jhtml?x-itemid=534808356122&x-uid=671185909).

But if I print out the page_source now I will get the empty value. 

Why this happen?

And of course any element location will lead to the :

**selenium.common.exceptions.NoSuchElementException**

I search on Google and I know that it's not caused by the unload of the page. 

So why this happen and how to  fix it? 

Here is the code I use. 

The account name and the code are in the cfg file.

    # -*- coding: utf-8 -*-

    from selenium import webdriver

    from selenium.webdriver.common.action_chains import ActionChains

    import os

    import time

    from selenium.webdriver.support.ui import WebDriverWait

    from selenium.webdriver.common.keys import Keys  #需要引入keys包

    chromedriver = "chromedriver.exe"

    os.environ["webdriver.chrome.driver"] = chromedriver

     

    d = {}

    with open("cfg.ini", encoding = 'utf-8') as f:

        for line in f:

           (key, val) = line.split()

           d[key] = val

    

    options = webdriver.ChromeOptions()

    options.add_argument('--ignore-certificate-errors')

    options.add_argument('--ignore-ssl-errors')

    driver = webdriver.Chrome(chrome_options=options)

    

    driver.maximize_window()

    driver.get('https://login.taobao.com/member/login.jhtml')

    time.sleep(2)

    driver.find_element_by_id('J_Quick2Static').click()

    driver.find_element_by_id("TPL_username_1").clear()

    driver.find_element_by_id("TPL_username_1").send_keys(d['accountname'])

     

    driver.find_element_by_id("TPL_username_1").send_keys(Keys.TAB)

    time.sleep(1)

    driver.find_element_by_name("TPL_password").send_keys(d['code'])

    

    driver.find_element_by_css_selector('#J_SubmitStatic').click()

    

    print('-' * 20)

    print(d['phone'])

    driver.get(d['itemurl'])

    

    element=WebDriverWait(driver,60).until(lambda driver :

    driver.find_element_by_css_selector('#J_LinkBuy'))

    

    # with open('res1.html', 'a') as the_file:

       # the_file.write(driver.page_source)

    element.click()

    

    element=WebDriverWait(driver,60).until(lambda driver :

    driver.find_element_by_css_selector('#J_phone'))

    

    driver.find_element_by_id('J_phone').click()

    

    print('here is the page')

    print(driver.page_source)

The cfg file is like this :

    accountname xxx

    code xxxx

    phone xxxx

    itemurl xxxx

[Zhe Lee]

And I try to change the frame of the web but it doesn't work. Why is that ?