python下載文件的三種方法
Python開發(fā)中時(shí)長遇到要下載文件的情況贰您,最常用的方法就是通過Http利用urllib或者urllib2模塊。
當(dāng)然你也可以利用ftplib從ftp站點(diǎn)下載文件社露。此外Python還提供了另外一種方法requests青柄。
下面來看看三種方法是如何來下載zip文件的:
方法一:
import urllib
import urllib2
import requests
print "downloading with urllib"
url = 'http://www.pythontab.com/test/demo.zip'
print "downloading with urllib"
urllib.urlretrieve(url, "demo.zip")
方法二:
import urllib2
print "downloading with urllib2"
url = 'http://www.pythontab.com/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.pythontab.com/test/demo.zip'
r = requests.get(url)
with open("demo3.zip", "wb") as code:
code.write(r.content)
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看起來使用urllib最為簡單毅整,一句語句即可。當(dāng)然你可以把urllib2縮寫成:
f = urllib2.urlopen(url) with open("demo2.zip", "wb") as code: code.write(f.read())