passwd.send_keys('password')
time.sleep(0.5)
submit = driver.find_element_by_tag_name('button')
submit.click()

# iterate n times to kill items
i = 0
total_item = 0
total_page = 0
error = 0
while (i < 100):
    # wait until the elements appear on the page
    try:
        check = WebDriverWait(driver, 30).until(
            EC.presence_of_all_elements_located((By.NAME, 'dislike')))
        num = check.__len__()

        # kill all the items in current page
        for i in range(num):

            dislike = WebDriverWait(driver, 5).until(
                EC.presence_of_element_located((By.NAME, 'dislike')))
            dislike.click()

            time.sleep(0.8)

            # close the notice message in one line
            close = WebDriverWait(driver, 5).until(
                EC.presence_of_element_located((By.CLASS_NAME, 'close')))
            close.click()