mirror of
https://github.com/python/cpython.git
synced 2024-12-01 11:15:56 +01:00
36 lines
821 B
Python
Executable File
36 lines
821 B
Python
Executable File
#! /usr/local/python
|
|
|
|
# Print From and Subject of messages in $MAIL.
|
|
# Extension to multiple mailboxes and other bells & whistles are left
|
|
# as exercises for the reader.
|
|
|
|
import sys, os
|
|
|
|
# Open mailbox file. Exits with exception when this fails.
|
|
|
|
try:
|
|
mailbox = os.environ['MAIL']
|
|
except (AttributeError, KeyError):
|
|
sys.stderr.write('No environment variable $MAIL\n')
|
|
sys.exit(2)
|
|
|
|
try:
|
|
mail = open(mailbox, 'r')
|
|
except IOError:
|
|
sys.stderr.write('Cannot open mailbox file: ' + mailbox + '\n')
|
|
sys.exit(2)
|
|
|
|
while 1:
|
|
line = mail.readline()
|
|
if not line: break # EOF
|
|
if line[:5] == 'From ':
|
|
# Start of message found
|
|
print line[:-1],
|
|
while 1:
|
|
line = mail.readline()
|
|
if not line: break # EOF
|
|
if line == '\n': break # Blank line ends headers
|
|
if line[:8] == 'Subject:':
|
|
print `line[9:-1]`,
|
|
print
|