第一个python程序

#!/usr/bin/python
import re
arrays=[]
fr = open('current','r')
dict={}
for line in fr:
        p = re.compile(r'.*\s+(\w+@gmail\.com).*')
        m = p.match(line)
        if m:
                s_t = m.group(1)
                dict[s_t] = dict.get(s_t, 0) + 1
#               arrays.append(s_t)
#arrays.sort()
for keys in dict:
        value = dict.get(keys,0)
        print keys, value
for i in  dict.iteritems():
        print i[0],i[1],i
for i in  sorted(dict.iteritems(),key=lambda d:d[1],reverse = False):
        value = dict.get(i,0)
        print i[0],i[1]