Python如何下载文件

转载自:http://www.codecho.com/how-to-download-a-file-in-python/

利用程序自己编写下载文件挺有意思的。Python中最流行的方法就是通过Http利用urllib或者urllib2模块。当然你也可以利用ftplib从ftp站点下载文件。此外Python还提供了另外一种方法requests。

来看看三种方法是如何来下载zip文件的:

import urllib
import urllib2
import requests
 
url = 'http://www.blog.pythonlibrary.org/wp-content/uploads/2012/06/wxDbViewer.zip'
 
print "downloading with urllib"
urllib.urlretrieve(url, "code.zip")
 
print "downloading with urllib2"
f = urllib2.urlopen(url)
data = f.read()
with open("code2.zip", "wb") as code:
    code.write(data)
 
print "downloading with requests"
r = requests.get(url)
with open("code3.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("code2.zip", "wb") as code:
code.write(f.read())

具体点的可以看看:http://www.blog.pythonlibrary.org/2012/06/07/python-101-how-to-download-a-file/

posted @ 2013-11-08 18:30  r3call  阅读(580)  评论(0编辑  收藏  举报