Code

import sys
import re
import os

f=open("2","r")
w=[]
subl=[]
subd={}
fr=f.read()
match=re.search('subject:(.+)\n',fr.lower())
if match:
    subl=subl+[w for w in re.split('\W',match.group(1)) if w]
    print (subl)
    for element in subl:
        if element in subd:
            subd[element]+=1
        else:
            subd[element]=1
    print (subd.items())
f.close()
f=open("2","rU")
words=[]
flag=0
for line in f:
    if flag==0 and not re.search(r'x-filename',line.lower()):
        continue
    elif flag==0 and re.search(r'x-filename',line.lower()):
        flag=1
        continue
    elif not ( re.search(r'forwarded by',line.lower()) or re.search(r'original message',line.lower()) ):
        print line
        words=words+[w for w in re.split('\W',line) if w]
    elif re.search(r'forwarded by',line.lower()) or re.search(r'original message',line.lower()):
        break
print words