Python 预期条件下的硒：'；str'；对象不可调用

我要走了

Traceback (most recent call last):
  File "/Users/xyz/Documents/Projects/apartmentsearch/stanga.py", line 46, in <module>
    wait.until(EC.visibility_of_element_located(By.CLASS_NAME('sk-fading-circle spinner-container-3')))
TypeError: 'str' object is not callable

运行Python2.7。编辑网站URL，但它的工作，我可以加载页面无需等待

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在线代码片段似乎表明这样的代码应该是可运行的。我错过了什么？我想用断点来解决这个问题，但PyCharm并不是因为某种原因而停在我的断点上，这也是我想解决的问题…

您指定的定位器错误。它需要是

（By，selector\u string）

另外，看起来您正试图为类名使用多个类。我认为那行不通。您应该尝试使用

（By.CSS_选择器，'.sk disking circle.spinner-container-3'）

from bs4 import BeautifulSoup
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

PHANTOMJS_PATH = './pjs/bin/phantomjs'

browser = webdriver.PhantomJS(PHANTOMJS_PATH)
browser.get('REDACTED')

wait = WebDriverWait(browser, 10)
wait.until(EC.visibility_of_element_located(By.CLASS_NAME('sk-fading-circle spinner-container-3')))
wait.until(EC.invisibility_of_element_located(By.CLASS_NAME('sk-fading-circle spinner-container-3')))

soup = BeautifulSoup(browser.page_source, "html.parser")

print(soup.prettify())

wait = WebDriverWait(browser, 10)
wait.until(EC.visibility_of_element_located((By.CLASS_NAME, 'sk-fading-circle 
spinner-container-3')))
wait.until(EC.invisibility_of_element_located((By.CLASS_NAME, 'sk-fading-circle 
spinner-container-3')))