itertools.groupby('AaaBBbcCAAa', lambda c: c.upper())
A ['A', 'a', 'a']
B ['B', 'B', 'b']
C ['c', 'C']
A ['A', 'A', 'a']
################################ Web operation ################################
from urllib import request
req = request.Request('http://www.douban.com/')
req.add_header('User-Agent', 'Mozilla/6.0 (iPhone; CPU iPhone OS 8_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/8.0 Mobile/10A5376e Safari/8536.25')
with request.urlopen(req) as f:
print('Status:', f.status, f.reason)
for k, v in f.getheaders():
print('%s: %s' % (k, v))
print('Data:', f.read().decode('utf-8'))
from urllib import request, parse
print('Login to weibo.cn...')
email = input('Email: ')
passwd = input('Password: '******'username', email),
('password', passwd),
('entry', 'mweibo'),
('client_id', ''),
('savestate', '1'),
('ec', ''),
'''
request.urlopen(url,data=None,timeout=...)
#Open the URL url, which can be either a string or a Request object
'''
from urllib import request
#模拟浏览器发送GET请求，就需要使用Request对象，通过往Request对象添加HTTP头，我们就可以把请求伪装成浏览器
req = request.Request('http://www.douban.com/') #创建request对象
req.add_header(
'User-Agent',
'Mozilla/6.0 (iPhone; CPU iPhone OS 8_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/8.0 Mobile/10A5376e Safari/8536.25'
)
with request.urlopen('http://www.douban.com/') as f: #请求内容和响应内容都包含在f中
data = f.read()
print('status:', f.status, f.reason) #获取响应返回码和说明
for k, v in f.getheaders(): #获取响应头
print('%s:%s' % (k, v))
print('data:', data.decode('utf-8')) #对内容进行解码
# post请求：只需要把参数data以bytes形式传入
from urllib import request, parse
print('Login to weibo.cn...')
email = input('Email: ')
passwd = input('Password: '******'username', email), ('password', passwd), ('entry', 'mweibo'),
('client_id', ''), ('savestate', '1'), ('ec', ''),
('pagerefer',
'https://passport.weibo.cn/signin/welcome?entry=mweibo&r=http%3A%2F%2Fm.weibo.cn%2F'
)
