python3获取指定网页，指定保存位置

import os
import request

def DownloadFile(url, savePath):
    if not os.path.exists(savePath):
        print("downloading {0}".format(url))
        kv={‘user-agent‘:‘Mozilla/5.0‘}
        try:
            r = requests.get(url,headers=kv, timeout=60)
            r.raise_for_status()    # 如果响应状态码不是 200，就主动抛出异常
            with open(savePath,‘wb‘)as f:
                f.write(r.content)
                f.close()
                print("save file succeed")
                time.sleep(1)
        except requests.RequestException as e:
            print(e)
            with open(‘D:/timeout.txt‘, ‘a+‘,encoding = ‘UTF-8‘) as fw: #读入存储文件路径
                fw.write(‘%s,%s\n‘ % (url,e))
    else:
        print("file already exists")#