Question

我正在尝试从IMDB网站中提取一些信息，我正在提取信息并将其写入CSV文件。当我试图找到一个不存在的元素时，它会卡住。

这是我的代码：

from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException
import os
import csv


profile = webdriver.ChromeOptions()
profile.add_experimental_option(
"prefs", {'download.default_directory': '/Users/aravind/tekie/ml-project/scrapper-opensubs/subs',
                'download.prompt_for_download': False})
driver = webdriver.Chrome(
    executable_path='/Users/aravind/chromedriver')
web = 'https://www.imdb.com/search/title?genres=animation&explore=title_type,genres&title_type=movie&ref_=adv_explore_rhs'
driver.get(web)
driver.implicitly_wait(2000)
with open('./movies.csv', mode='w') as csv_file:
    writer = csv.writer(csv_file)
    writer.writerow(['Movie-Title','Rating','Meta-Score','Cast','Votes','Gross'])
    for page in range(0,1):
        print('...crawling started')
        list_of_names = driver.find_elements_by_class_name('lister-item-content')
        for index in range(0,len(list_of_names)):
            if list_of_names[index].find_elements_by_class_name('lister-item-header'):
                title = list_of_names[index].find_elements_by_class_name(
                'lister-item-header')[0].find_elements_by_tag_name('a')[0].text.strip()
            else:
                title="NA"
            if list_of_names[index].find_elements_by_class_name('ratings-imdb-rating'):
                rating = list_of_names[index].find_elements_by_class_name(
                'ratings-imdb-rating')[0].text.strip()
            else:
                rating = "NA"
            if list_of_names[index].find_elements_by_class_name('ratings-metascore'):
                metaScore = list_of_names[index].find_elements_by_class_name(
                    'ratings-metascore')[0].find_elements_by_tag_name('span')[0].text.strip()
            else:
                metaScore = "NA"
            if list_of_names[index].find_elements_by_tag_name('p')[2]:
                cast = list_of_names[index].find_elements_by_tag_name('p')[2].text.strip()
            else:
                cast="NA"
            if list_of_names[index].find_elements_by_class_name('sort-num_votes-visible')[0]:
                votes = list_of_names[index].find_elements_by_class_name(
                    'sort-num_votes-visible')[0].find_elements_by_tag_name('span')[1].text.strip()
            else:   
                votes="NA"
            if list_of_names[index].find_elements_by_class_name('sort-num_votes-visible')[0]:
                gross = list_of_names[index].find_elements_by_class_name(
                    'sort-num_votes-visible')[0].find_elements_by_tag_name('span')[4].get_attribute('data-value').strip()
            else:
                gross="NA"
            print('done',index)
            writer.writerow([title,rating,metaScore,cast,votes,gross])

我什至尝试了try except，但没有成功。如何不处理data_case？

Answer 1

“卡住”部分的原因是driver.implicitly_wait(2000)部分-网络驱动程序等待2000秒后才超时（大约33分钟）。

每次find_elements_by_class_name找不到任何东西（例如，不存在）时，就会发生这种情况。

找不到元素时硒被卡住

1 个答案: