pprint to a file

Question

Here is my code:

import mailbox
import pprint
mbox = mailbox.mbox('c:\documents and settings\student\desktop\mail\mailall.mbox')
for msg in mbox:
pprint.pprint(msg._headers)

This prints out hundreds of emails headers one after another. How can i write these results to a txt file?

Answer 1

You can use a file output stream.

import mailbox
import pprint
f=open('./headersfile.txt', 'w+')
mbox = mailbox.mbox('c:\documents and settings\student\desktop\mail\mailall.mbox')
for msg in mbox:
    pprint.pprint(msg._headers, stream=f)
f.close()

Details here: https://docs.python.org/2/library/pprint.html#pprint.pprint

Answer 2

Any of:

1. Use the stream parameter of pprint.pprint
2. Use pprint.pformat and separate write operation(s)
3. Redirect the program's output