Python Selenium-AttributeError：WebElement对象在textarea中没有属性sendKeys

我的代码：

from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.by import By
driver=webdriver.Firefox()
driver.get("http://www.58yumi.com/")
driver.find_element_by_id("UserName").send_keys("XXXXXXX")
driver.find_element_by_id("Password").send_keys( "XXXXXX")
driver.find_element_by_xpath("//*[contains(@type,'submit')]").click()
driver.get("http://www.58yumi.com/user_jiexi.htm")
driver.find_element_by_id("cznr").sendKeys("XXXX.com|forcname|CNAME|forcname.XXXX.com.a.bdydns.com|default");
......

我在element_by_id（“ cznr”）中收到错误：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'WebElement' object has no attribute 'sendKeys'

html：

<textarea id="cznr" onkeyup="czhang();" name="ymlb" cols="60" class="inputs2" rows="10"></textarea>

帮助....如何在textarea中输入数据？