01 网络请求

urlopen

python3	python2
urllib.request.urlopen	urllib2.urlopen

urlretrieve

python3	python2
urllib.request.urlretrieve	urllib.urlretrieve

urlencode参数编码

python3	python2
urllib.parse.urlencode	urllib.urlencode

parse_qs解码

python3	python2
urllib.parse.parse_qs	urllib2.urlparse.parse_qs

urlparse

python3	python2
urllib.parse.urlparse	urllib2.urlparse.urlparse

urllib2.urlparse.urlsplit('http://www.baidu.com/dd?xx=1&yy=2#1')
SplitResult(scheme='http', netloc='www.baidu.com', path='/dd', query='xx=1&yy=2', fragment='1')

image.png

ProxyHandler

build_opener

python3	python2
urllib.request.ProxyHandler	urllib2.ProxyHandler
urllib.request.build_opener	urllib2.build_opener

handler=urllib2.ProxyHandler({'http':'127.0.0.1:1080'})
opener=urllib2.build_opener(handler)
opener.open('http://httpbin.org/ip').read()

CookieJar

python3	python2
http.cookiejar.CookieJar	cookielib.Cookiejar

cookiejar=CookieJar()
handler=urllib2.HTTPCookieProcessor(cookiejar=cookiejar)
opener=urllib2.build_opener(handler)

MozillaCookieJar

cookiejar=MozillaCookieJar('d:/tmp/cookie.txt')
...
cookiejar.save(ignore_discard=True)
cookiejar.load(ignore_discard=True)