Three ways to download files in python_python

This article mainly introduces three methods of downloading files in python. The most common method is to use urllib or urllib2 module and requests through Http. Those who are interested can learn more.

Whenever you encounter the situation of downloading files during Python development, the most common method is to use the urllib or urllib2 module through Http.

Of course you can also use ftplib to download files from the ftp site. In addition, Python also provides another method, requests.

Let’s take a look at three methods to download zip files:

Method 1:

import urllib 
import urllib2 
import requests
print "downloading with urllib" 
url = 'http://www.jb51.net//test/demo.zip' 
print "downloading with urllib"
urllib.urlretrieve(url, "demo.zip")

Method 2:

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)

Method three:

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)

It seems that using urllib is the easiest, just one statement. Of course you can abbreviate urllib2 as:

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

Related recommendations:

Merge of Python file operations Introduction to text file content methods

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