def send_email(message):
    email = EmailMessage(subject=message["email_subject"], body=message["email_body"], to=[message["to_email"]])
    email.send()

import threading
 
class EmailThread(threading.Thread):
    def __init__(self, email): 
        self.email = email 
        threading.Thread.__init__(self) 
        
    def run(self):
        self.email.send() 

def send_email(message):
    email = EmailMessage(subject=message["email_subject"], body=message["email_body"], to=[message["to_email"]])
    EmailThread(email).start()

#views.py
serializer = ChangePasswordSerializer(user, data=request.data, context={'request': request})

#serializers.py
current_password = self.context.get("request").user.password

#serializers.py
nickname = date.get('nickname')
if nickname == '':
	raise serializers.ValidationError(detail={"nickname":"닉네임을 임력해주세요"})

#models.py
email = models.EmailField( max_length=255,unique=True, error_messages={'unique': "이미 존재하는 이메일 주소입니다."})
nickname = models.CharField(max_length=15, unique=True, error_messages={'unique': "이미 존재하는 닉네임입니다."})

#serializers.py
extra_kwargs= 
{'email': {'error_messages': {
'required': '이메일을 입력해주세요.',
'invalid': '알맞은 형식의 이메일을 입력해주세요.',
'blank':'이메일을 입력해주세요.',}},
  
'nickname': {
'error_messages': {
'required': '닉네임을 입력해주세요.',
'blank':'닉네임을 입력해주세요',}},}

from urllib.request import urlopen
import pandas as pd
import urllib.request
import urllib.parse
import time
from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException

driver = webdriver.Chrome('C:/chromedriver_win32/chromedriver.exe') #크롬 드라이버 접근
driver.implicitly_wait(1)

url = 'https://www.melon.com/chart/age/index.htm?chartType=YE&chartGenre=KPOP&chartDate='
year = ['1990','1991','1992','1993','1994','1995','1996','1997','1998','1999', '2000', '2001','2002','2003','2004','2005','2006','2007','2008','2009','2010','2011','2012','2013','2014', '2015','2016','2017','2018','2019']

#전체 데이터를 담을 곳
df = pd.DataFrame() 

#test
driver.get(url+year[0]) #연도 선택 - 반복문 


jenre = [] # 큰 반복문 안에
lyrics = []
titles = []
year = []



for i in range(50):

    info_list = driver.find_elements_by_css_selector('#lst50 > td:nth-child(4) > div > a') #Top50 리스트 #Top50 리스트
    info_list[i].click() #곡정보 선택
    time.sleep(2)

    #가사 펼치기
    try:
        driver.find_element_by_css_selector('.button_more.arrow_d').click()
        time.sleep(2)
    except NoSuchElementException: #가사가 없는 경우 펼치기 수행x
        pass
   


    #장르, 가사, 노래 제목 크롤링
    titles.append(driver.find_element_by_css_selector('#downloadfrm > div > div > div.entry > div.info > div.song_name').text)
    jenre.append(driver.find_element_by_css_selector('#downloadfrm > div > div > div.entry > div.meta > dl > dd:nth-child(6)').text)
    lyrics.append(driver.find_element_by_css_selector('#lyricArea').text)
    year.append('1990')
    
    driver.back()
    time.sleep(2)

df = pd.DataFrame(zip(year, titles, jenre, lyrics), columns=['year','titles','jenre','lyrics'])


time.sleep(2)
driver.close()

df.to_csv('C:/Users/haeni_kim/Desktop/PROJECT/multi_project/melon_inform.csv',encoding = 'utf-8-sig')