python urllib模块学习笔记
这个模块是最基本最常用的，以前看过，总结一下# coding : utf-8
import urllib
url = 'http://iyunv.com'
#代理服务器
proxies = {'http':'http://127.0.0.1:8087'}
#使用代理服务器打开
r = urllib.urlopen(url,proxies = proxies)
print r.info()
print r.getcode()
print r.geturl()
#打开本地文件
f = urllib.urlopen(url = 'file:/home/ma6174/a.sh')
print f.read()
#打开ftp
#f = urllib.urlopen(url = 'ftp://username:password@ftpaddress')
#保存网页并显示进度
def cbk(a, b, c):
'''
a: num
b: size
c: total
'''
per = 100.0*a*b/c
if per > 100:
per = 100
print '%.2f%%' % per
local = 'cnblogs.html'
urllib.urlretrieve(url,local,cbk)
#get方法
params = urllib.urlencode({'spam': 1, 'eggs': 2, 'bacon': 0})
f = urllib.urlopen("http://www.musi-cal.com/cgi-bin/query?%s" % params)
print f.read()
#post方法
params = urllib.urlencode({'spam': 1, 'eggs': 2, 'bacon': 0})
f = urllib.urlopen("http://www.musi-cal.com/cgi-bin/query", params)
print f.read()
#编码解码
data = 'name = ~a+3'
data1 = urllib.quote(data)
print data1 # result: name%20%3D%20%7Ea%2B3
print urllib.unquote(data1) # result: name = ~a+3
data2 = urllib.quote_plus(data)
print data2 # result: name+%3D+%7Ea%2B3
print urllib.unquote_plus(data2) # result: name = ~a+3
data3 = urllib.urlencode({ 'name': 'dark-bull', 'age': 200 })
print data3 # result: age=200&name=dark-bull
data4 = urllib.pathname2url(r'd:/a/b/c/23.php')
print data4 # result: ///D|/a/b/c/23.php
print urllib.url2pathname(data4) # result: D:/a/b/c/23.php
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