I tried typing \'abc\' in the first block of id and \'cdef\' in the second block of password. However, the error code at the bottom comes up.
from selenium
It is in a frame which you need to switch to first. Also, use ids where possible as they are faster.
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
url ="http://sugang.korea.ac.kr"
driver = webdriver.Chrome()
driver.get(url)
WebDriverWait(driver,5).until(EC.visibility_of_element_located((By.CSS_SELECTOR,'[name=firstF]')))
driver.switch_to.frame(driver.find_element_by_css_selector('[name=firstF]'))
WebDriverWait(driver,5).until(EC.visibility_of_element_located((By.ID,'id'))).send_keys('abc')
driver.find_element_by_id('pw').send_keys('def')
driver.find_element_by_id('loginButton').click()