Python实现下载文件的三种方法

下面来看看三种方法是如何来下载zip文件的：
方法一：

import urllib 

print "downloading with urllib" url = 'http://www.jb51.net//test/demo.zip' urllib.urlretrieve(url, "demo.zip")

方法二：

import urllib2
 print "downloading with urllib2" url = 'http://www.jb51.net//test/demo.zip' f = urllib2.urlopen(url) data = f.read() with open("demo2.zip", "wb") as code: code.write(data)

方法三：

import requests 
 print "downloading with requests" url = 'http://www.jb51.net/test/demo.zip' r = requests.get(url) with open("demo3.zip", "wb") as code: code.write(r.content)

看起来使用urllib最为简单，一句语句即可。当然你可以把urllib2缩写成：

f = urllib2.urlopen(url) with open("demo2.zip", "wb") as code: code.write(f.read())