Question

所以我试图翻译tripadvisor上的所有评论以保存评论（非翻译，原文）和翻译评论（从葡萄牙语到英语）。

因此，刮刀首先选择要显示的葡萄牙语注释，然后像往常一样将它们逐个转换为英语，并将翻译的注释保存在com_中，而扩展的非翻译注释则保存在expand_comments中。

现在的问题是，对于已经使用英语的评论，其中没有任何“Google翻译”小部件。但是，如果没有，那么我想至少保存这些评论作为英语本身。但我无法处理缺少元素。

基本上save_comments(driver)函数就是它发生的地方。

from selenium import webdriver
from selenium.webdriver.common.by import By
import time
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
com_=[]
expanded_comments=[]
date_=[]
driver = webdriver.Chrome("C:\Users\shalini\Downloads\chromedriver_win32\chromedriver.exe")
driver.maximize_window()
from bs4 import BeautifulSoup

def expand_reviews(driver):
    # TRYING TO EXPAND REVIEWS (& CLOSE A POPUP)    
    try:
        driver.find_element_by_class_name("moreLink").click()
    except:
        print "err"
    try:
        driver.find_element_by_class_name("ui_close_x").click()
    except:
        print "err2"
    try:
        driver.find_element_by_class_name("moreLink").click()
    except:
        print "err3"


def save_comments(driver):
    # SELECTING ALL GOOGLE-TRANSLATOR links
    gt= driver.find_elements(By.CSS_SELECTOR,".googleTranslation>.link")

    # NOW PRINTING TRANSLATED COMMENTS
    for i in gt:

        try:
            driver.execute_script("arguments[0].click()",i)

            #com=driver.find_element_by_class_name("ui_overlay").text
            com= driver.find_element_by_xpath(".//span[@class = 'ui_overlay ui_modal ']//div[@class='entry']")
            com_.append(com.text)
            time.sleep(5)
            driver.find_element_by_class_name("ui_close_x").click().perform()
            time.sleep(5)
        except Exception as e:
            pass
    #AS PER user : BREAKS_SOFTWARE
    if gt.size()==0:
        print "ERR"

# ITERATING THROIGH ALL 200 tripadvisor webpages and saving comments & translated comments             
for i in range(56,58):
    page=i*10
    url="https://www.tripadvisor.com/Airline_Review-d8729164-Reviews-Cheap-Flights-or"+str(page)+"-TAP-Portugal#REVIEWS"
    driver.get(url)
    wait = WebDriverWait(driver, 10)
    if i==0:
        # SELECTING PORTUGUESE COMMENTS ONLY # Run for one time then iterate over pages
        try:
            langselction = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "span.sprite-date_picker-triangle")))
            langselction.click()
            driver.find_element_by_xpath("//div[@class='languageList']//li[normalize-space(.)='Englsih first']").click()
            time.sleep(5)
        except Exception as e:
            print e

    save_comments(driver)

Answer 1

if (gt.size() == 0): 
    insert code here to extract the english comments

python selenium如何处理缺少元素

1 个答案: