每当我运行代码时，它会打开instagram页面大约两秒钟，直到它关闭，然后它给我这个错误：'WebDriver'对象没有'find_element_by_name'属性
每当我运行代码时，它会打开instagram页面大约两秒钟，直到它关闭，然后它给我这个错误：'WebDriver'对象没有'find_element_by_name'属性

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
import time, random

#Username and password of our instagram account
my_username = 'a'
my_password = 'm'

#Instagram username list for DM:
usernames = ['user1', 'user2', 'user3',]

#Messages:
messages = ['Hey! Please follow my page', 'Hey, how are you doing?', 'Hey']

#Delay time between messages in sec:
between_messages = 2000

browser = webdriver.Chrome('chromedriver')

# Authorization:
def auth(username, password):
    try:
        browser.get('https://instagram.com')
        time.sleep(random.randrange(2,4))

        input_username = browser.find_element_by_name('username')
        input_password = browser.find_element_by_name('username')

        input_username.send_keys(username)
        time.sleep(random.randrange(1,2))
        input_password.send_keys(password)
        time.sleep(random.randrange(1,2))
        input_password.send_keys(Keys.ENTER)

    except Exception as err:
        print(err)
        browser.quit()

auth(my_username, my_password)