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annotate Demo/scripts/from.py @ 80661:94de77bd0b4b 2.7

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Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents 71a294bd7950
children 7d16b42fcdbd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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73758db2f464 /usr/local/bin/python -> /usr/bin/env python
Guido van Rossum <guido@python.org>
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1 #! /usr/bin/env python
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2
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3 # Print From and Subject of messages in $MAIL.
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4 # Extension to multiple mailboxes and other bells & whistles are left
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5 # as exercises for the reader.
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6
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5d2f62ad8dee change posix to os; and change error message
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7 import sys, os
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8
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9 # Open mailbox file. Exits with exception when this fails.
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10
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11 try:
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Moshe Zadka <moshez@math.huji.ac.il>
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12 mailbox = os.environ['MAIL']
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13 except (AttributeError, KeyError):
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14 sys.stderr.write('No environment variable $MAIL\n')
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15 sys.exit(2)
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16
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17 try:
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parents: 4573
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18 mail = open(mailbox)
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9715fdc1e462 IOError instead of RuntimeError
Guido van Rossum <guido@python.org>
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19 except IOError:
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parents: 4573
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20 sys.exit('Cannot open mailbox file: ' + mailbox)
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21
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22 while 1:
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parents: 4573
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23 line = mail.readline()
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Moshe Zadka <moshez@math.huji.ac.il>
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24 if not line:
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25 break # EOF
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26 if line.startswith('From '):
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27 # Start of message found
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28 print line[:-1],
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29 while 1:
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parents: 4573
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30 line = mail.readline()
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parents: 4573
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31 if not line or line == '\n':
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32 break
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parents: 4573
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33 if line.startswith('Subject: '):
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71a294bd7950 Replace backticks with repr() or "%r"
Walter Dörwald <walter@livinglogic.de>
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34 print repr(line[9:-1]),
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parents: 4573
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35 print