1 import re

2 p = re.compile('AAAAAAAA',re.S)

3 f = open(r"D:\test\oldfile.txt","r").read()

4 paralist = p.split(f)

5 total_num = len(paralist)

6 for paraindex in range(total_num):

7     filewrite=file( r"D:\test\\" + str(paraindex) + ".txt",'w')

8     filewrite.writelines(paralist[paraindex])

9 filewrite.close()