1 import requests
 2 from tqdm import tqdm
 3 
 4 def downloadFILE(url,name):
 5     resp = requests.get(url=url,stream=True)
 6     #stream=True的作用是仅让响应头被下载，连接保持打开状态，
 7     content_size = int(resp.headers['Content-Length'])/1024        #确定整个安装包的大小
 8     with open(name, "wb") as f:
 9         print "安装包整个大小是：",content_size,'k，开始下载...'
10         for data in tqdm(iterable=resp.iter_content(1024),total=content_size,unit='k',desc=name):
11     #调用iter_content，一块一块的遍历要下载的内容，搭配stream=True，此时才开始真正的下载
12     #iterable：可迭代的进度条 total：总的迭代次数 desc：进度条的前缀
13             f.write(data)
14         print name + "已经下载完毕！"
15 
16 if __name__ == '__main__':
17     url = "需要下载的文件的地址"
18     name = url.split('/')[-1]        #截取整个url最后一段即文件名
19     downloadFILE(url,name)

 1 from tqdm import tqdm
 2 import time,requests
 3 
 4 def downloadFILE(url,name):
 5     resp = requests.get(url=url,stream=True)
 6     content_size = int(resp.headers['Content-Length'])/1024
 7     with open(name, "wb") as f:
 8         print("Pkg total size is:",content_size,'k,start...')
 9         for data in tqdm(iterable=resp.iter_content(1024),total=content_size,unit='k',desc=name):
10             f.write(data)
11         print(name + "download finished!")
12 if __name__ == '__main__':
13     url = "http://fastsoft.onlinedown.net/down/Fcloudmusicsetup2.5.5.197764.exe"
14     name = url.split('/')[-1]
15     downloadFILE(url,name)