femo_export.py

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import sys

filenum = sys.argv[1]

afile = open('femo-%s.txt' % (filenum)).read().splitlines()

memo = []
directory = 'memo%s' % (filenum)
num = 1
for line in afile:
    if line.startswith('created_on'):
        writefile = open("%s/%d.txt" % (directory, num), 'w')  
        writefile.write("\n".join(memo))
        writefile.close()
        print num
        num += 1
        memo = []
    else:
        memo.append(line)