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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
driver = webdriver.Firefox()
driver.get("http://somelink.com/")
WebDriverWait(driver, 10).until(expected_conditions.invisibility_of_element_located(By.XPATH, "//input[@id='message']"))
# Gives me an error:
TypeError: __init__() takes 2 positional arguments but 3 were given
...
# Simply:
expected_conditions.invisibility_of_element_located(By.XPATH, "//input[@id='message']"))
# Gives me the same error.
TypeError: __init__() takes 2 positional arguments but 3 were given
无论我使用 By.XPATH、By.ID 还是其他任何东西，错误都会重复出现。
此外，find_element 工作得很好:
el = driver.find_element(By.XPATH, "//input[@id='message']")
print(el) # returns:
[<selenium.webdriver.firefox.webelement.FirefoxWebElement (session="03cfc338-f668-4fcd-b312-8e4a1cfd9f24", element="c7f76445-08b3-4a4c-9d04-90263a1ef80e")>]
感谢建议。
编辑:
按照评论中的建议，By.XPATH, "//input[@id='message']" 周围的额外括号 () 解决了问题。