recursively unpack a multipart MIME message (Python recipe)

Today I recieved an PGP encrypted messages that was an attachment. After decrypting the message with GPG I was left with an uncrypted text file that was an multipart MIME message.

Getting the this uncrypted message back into my Mail program didn’t worked out that well so I searched for a way to unravel this multipart MIME.

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unpack a multi part mime message

#!/usr/bin/env python import email.Parser import os import sys def main():  if len(sys.argv)==1:   print "Usage: %s filename" % os.path.basename(sys.argv[0])   sys.exit(1)  mailFile=open(sys.argv[1],"rb")  p=email.Parser.Parser()  msg=p.parse(mailFile)  mailFile.close()  partCounter=1  for part in msg.walk():  if part.get_content_maintype()=="multipart":   continue   name=part.get_param("name")   if name==None:   name="part-%i" % partCounter partCounter+=1  # In real life, make sure that name is a reasonable  # filename on your OS.  f=open(name,"wb")  f.write(part.get_payload(decode=1))  f.close()  print name return None if __name__=="__main__":  main()

Enjoy! I found the script in old py and updated the depreciated parts 

Wessel