最近碰到的问题，简单记录下：
from IPy import IP
import re,os,time
#解析10.245.1.1-10.245.1.10这种类型的ip段
def all_for_one(dates):
ipx = dates.split('-')
ip2num = lambda x:sum([256**i*int(j) for i,j in enumerate(x.split('.')[::-1])])
num2ip = lambda x: '.'.join([str(x//(256**i)%256) for i in range(3,-1,-1)])
a = [num2ip(i) for i in range(ip2num(ipx[0]),ip2num(ipx[1])+1) if not ((i+1)%256 == 0 or (i)%256 == 0)]
return a
#解析带掩码的ip段
def netmask_to_ip(dates):
dic = []
for date in dates:
ip_name = date
ret = re.search(r'((2[0-4]\d|25[0-5]|[01]{0,1}\d{0,1}\d)\.){3}(2[0-4]\d|25[0-5]|[01]{0,1}\d{0,1}\d)[-/]',ip_name) #是区分IP段中是否含有-以及/
if(ret != None):
ret = re.search(r'((2[0-4]\d|25[0-5]|[01]{0,1}\d{0,1}\d)\.){3}(2[0-4]\d|25[0-5]|[01]{0,1}\d{0,1}\d)[/]',ip_name) #是区分IP段中是否含有/
if(ret != None):
ip = IP(ip_name, make_net=1) #注意此处必须添加参数 make_net=1，IPy模块的缺陷，主要是make_net默认为0，就是标准的iP最后一位是16,32，这种才行，设置为1，就可以自己定义了。
for x in ip:
dic.append(str(x))
else:
ip_result = all_for_one(ip_name) #解析10.245.1.1-10.245.1.10这种类型的ip段
return ip_result
return list(set(dic))
if __name__ == '__main__':
ip_list = ['10.10.10.1/29']
dic = netmask_to_ip(ip_list)
print len(dic)
print dic
