如何使用硒在instagram弹出框中向下滚动

时间:2019-01-13 21:59:31

标签: python selenium instagram webautomation

我有一个使用selenium的python脚本,可转到给定的Instagram个人资料并遍历用户的关注者。在instagram网站上,单击以查看关注者列表,将弹出一个列出所列出帐户的弹出窗口(此处为a screenshot of the site

但是无论是在视觉上还是在html中,仅显示12个帐户。为了查看更多内容,必须向下滚动,所以我尝试使用Keys.PAGE_DOWN输入。

from selenium import webdriver
from selenium.common.exceptions         import TimeoutException
from selenium.webdriver.support.ui      import WebDriverWait 
from selenium.webdriver.support         import expected_conditions as EC
from selenium.webdriver.chrome.options  import Options
from selenium.webdriver.common.keys     import Keys
import time 

...

username = 'Username'
password = 'Password'
message  = 'blahblah'
tryTime  = 2

#create driver and log in
driver = webdriver.Chrome()
logIn(driver, username, password, tryTime)

#gets rid of preference pop-up
a = driver.find_elements_by_class_name("HoLwm")
a[0].click()

#go to profile
driver.get("https://www.instagram.com/{}/".format(username))

#go to followers list
followers = driver.find_element_by_xpath("//a[@href='/{}/followers/']".format(username))
followers.click()
time.sleep(tryTime) 

#find all li elements in list
fBody  = driver.find_element_by_xpath("//div[@role='dialog']")
fBody.send_keys(Keys.PAGE_DOWN) 

fList  = fBody.find_elements_by_tag("li")
print("fList len is {}".format(len(fList)))

time.sleep(tryTime)

print("ended")
driver.quit()

当我尝试运行此命令时,出现以下错误:

Message: unknown error: cannot focus element

我知道这可能是因为我为fBody使用了错误的元素,但是我不知道哪一个是正确的元素。有人知道我应该将PAGE_DOWN密钥发送给哪个元素,或者是否有另一种加载帐户的方法吗?

非常感谢您的帮助!

2 个答案:

答案 0 :(得分:0)

您要查找的元素为//div[@class='isgrP'],而Keys.PAGE_DOWN不适用于可滚动div。

您的变量fList保留旧值,滚动后需要再次查找元素。

#find all li elements in list
fBody  = driver.find_element_by_xpath("//div[@class='isgrP']")
scroll = 0
while scroll < 5: # scroll 5 times
    driver.execute_script('arguments[0].scrollTop = arguments[0].scrollTop + arguments[0].offsetHeight;', fBody)
    time.sleep(tryTime)
    scroll += 1

fList  = driver.find_elements_by_xpath("//div[@class='isgrP']//li")
print("fList len is {}".format(len(fList)))

print("ended")
#driver.quit()

答案 1 :(得分:0)

如果您在范围内添加迭代(用于),则上述代码可以正常工作 对于范围(1,4)中的i: 尝试:

            #find all li elements in list
            fBody  = self.driver.find_element_by_xpath("//div[@class='isgrP']")
            scroll = 0
            while scroll < 5: # scroll 5 times
                self.driver.execute_script('arguments[0].scrollTop = arguments[0].scrollTop + arguments[0].offsetHeight;', fBody)
                time.sleep(2)
                scroll += 1

            fList  = self.driver.find_elements_by_xpath("//div[@class='isgrP']//li")
            print("fList len is {}".format(len(fList)))

        except Exception as e:
            print(e, "canot scrol")

        try:
            #get tags with a
            hrefs_in_view = self.driver.find_elements_by_tag_name('a')
            # finding relevant hrefs
            hrefs_in_view = [elem.get_attribute('title') for elem in hrefs_in_view]

            [pic_hrefs.append(title) for title in hrefs_in_view if title not in pic_hrefs]
            print("Check: pic href length " + str(len(pic_hrefs)))

        except Exception as tag:
            print(tag, "can not find tag")

因此,即使while循环未命中,for循环也可以使其滚动