Python开发中时长遇到要下载文件的情况,最常用的方法就是通过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。
下面来看看三种方法是如何来下载zip文件的:
方法一:
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import urllib
import urllib2
import requests
print "downloading with urllib"
url = 'http://www.zzvips.com//test/demo.zip'
print "downloading with urllib"
urllib.urlretrieve(url, "demo.zip" )
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方法二:
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import urllib2
print "downloading with urllib2"
url = 'http://www.zzvips.com//test/demo.zip'
f = urllib2.urlopen(url)
data = f.read()
with open ( "demo2.zip" , "wb" ) as code:
code.write(data)
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方法三:
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import requests
print "downloading with requests"
url = 'http://www.zzvips.com/test/demo.zip'
r = requests.get(url)
with open ( "demo3.zip" , "wb" ) as code:
code.write(r.content)
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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:
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f = urllib2.urlopen(url)
with open ( "demo2.zip" , "wb" ) as code:
code.write(f. read ())
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.pythontab.com/html/2014/pythonjichu_0121/681.html