Я запускаю учебник по селену в PyCharm и получаю недопустимое выражение XPATH.Я просмотрел документацию Selenium, и, похоже, я правильно пишу XPATH.Он просто открывает Chrome и должен видеть изображение аватара после загрузки.Затем он получает ошибку XPATH.
Я пытаюсь выполнить следующее руководство: https://medium.com/the-andela-way/introduction-to-web-scraping-using-selenium-7ec377a8cf72
selenium.common.exceptions.InvalidSelectorException: Message: invalid
selector: Unable to locate an element with the xpath expression //a[@class
=’text-bold’] because of the following error: SyntaxError: Failed to execute
'evaluate' on 'Document': The string '//a[@class=’text-bold’]' is not a
valid XPath expression. (Session info: chrome=66.0.3359.181) (Driver
info: chromedriver=2.38.552522
(437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Windows NT
10.0.16299 x86_64)
Это мой код:
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import TimeoutException
# https://medium.com/the-andela-way/introduction-to-web-scraping-using-selenium-7ec377a8cf72
option = webdriver.ChromeOptions()
option.add_argument(' — incognito')
# Now create an 'instance' of your driver
# This path should be to wherever you downloaded the driver
browser = webdriver.Chrome(executable_path=r"C:\Users\Kyle Linden\Downloads\chromedriver")
# A new Chrome (or other browser) window should open up
browser.get('https://github.com/TheDancerCodes')
# Wait 20 seconds for page to load
timeout = 20
try:
WebDriverWait(browser, timeout).until(EC.visibility_of_element_located((By.XPATH, "//img[@class='avatar width-full rounded-2']")))
except TimeoutException:
print('Timed out waiting for page to load')
browser.quit()
# find_elements_by_xpath returns an array of selenium objects.
titles_element = browser.find_elements(By.XPATH, "//a[@class=’text-bold’]")
# use list comprehension to get the actual repo titles and not the selenium objects.
titles = [x.text for x in titles_element]
# print out all the titles.
print('titles:')
print(titles, '\n')
language_element = browser.find_element(By.XPATH, "//p[@class=’mb-0 f6 text-gray’]")
# same concept as for list-comprehension above.
languages = [x.text for x in language_element]
print('languages:')
print(languages, '\n')
for title, language in zip(titles, languages):
print("RepoName : Language")
print(title + ": " + language, '\n')
Я могуне могу понять, почему // p [@ class = 'mb-0 f6 text-grey'] недопустимо.