來自螢火蟲的Python Selenium Xpath未找到

Question

我正嘗試使用硒登入ESPN網站。這裏是我的代碼到目前爲止

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 

driver = webdriver.Firefox() 
driver.maximize_window() 

url = "http://www.espn.com/fantasy/" 
driver.get(url) 

login_button = driver.find_element_by_xpath("/html/body/div[6]/section/section/div/section[1]/div/div[1]/div[2]/a[2]") 
login_button.click() 

try: 
    element = WebDriverWait(driver, 10).until(
     EC.presence_of_element_located((By.XPATH, "/html/body/div[2]/div/div/section/section/form/section/div[1]/div/label/span[2]/input"))) 
except: 
    driver.quit() 

基本上，有2個步驟，首先我必須單擊登錄按鈕，然後我必須填寫表單。目前，我點擊登錄按鈕，表單彈出，但我找不到表單。我一直在使用螢火蟲來獲取xpath，正如其他SO問題所建議的。我不太瞭解硒，所以我不知道在哪裏尋找