Thread 모듈 활용 연습

파이썬 프로그래밍으로 지루한 작업 자동화하기 학습중..

import time, threading

print('start of game')
def takeaNap() :
    i = 0
    while True :
        time.sleep(1)
        print('wake up! : #{}'.format(i))
        i += 1
        if input() :
            print('key')
            continue
        else :
            print('else')
            pass
        break
threadObj = threading.Thread(target = takeaNap)
threadObj.start()
print('end of game')

threadobj2 = threading.Thread(target = print, args = ['Cats', 'Dogs', 'Frogs'], kwargs = {'sep' : '&'})
# 새 thread에 매개변수 전달할 때는 args 및 kwargs를 사용해야 한다. print(A)형태가 아닌 print 형태로 전달
# https://nostarch.com/automatestuff2 참고 사이트
# https://automatetheboringstuff.com/ website 참고
threadobj2.start()

#! python3
# downloadXkcd.py - Downloads every single XKCD comic.

import requests, os, bs4, threading, sys

os.makedirs('xkcd', exist_ok=True) # store comics in ./xkcd

print("Start!!")
def downloadXkcd(startComic, endComic) :
    for urlNumber in range(startComic, endComic) :
        print('download pages https://xkcd.com/%s...' %(urlNumber))
        res = requests.get('https://xkcd.com/%s' % (urlNumber))
        res.raise_for_status()
        soup = bs4.BeautifulSoup(res.text, features = 'lxml')
        comicElem = soup.select('#comic img')
        if comicElem ==[] :
            print('could not find comic image')
        else :
            comicUrl = 'https:' + comicElem[0].get('src')
            print(comicUrl)
            print('downloading img %s...' % (comicUrl))
            res = requests.get(comicUrl)
            res.raise_for_status()
            imageFile = open(os.path.join('xkcd', os.path.basename(comicUrl)), 'wb')
            for chunk in res.iter_content(100000) :
                imageFile.write(chunk)
            imageFile.close()
downloadThreadS = []
for i in range(1, 10, 1) :
    downloadThread = threading.Thread(target = downloadXkcd, args = (i, i + 99))
    downloadThreadS.append(downloadThread)
    downloadThread.start()
for downloadThread in downloadThreadS :
    downloadThread.join() #스레드가 종료될 때까지는 다음 코드 실행을 막아준다.
print('done')