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Nov 7, 2009, 6:32 PM
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[issue7285] multiprocessing module, example code error
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New submission from Kouki Hashimoto <hsmtkk [at] gmail>:
Example codes on multiprocessing module occur errors.
I attached the patch to fix these errors.
http://docs.python.org/dev/py3k/library/multiprocessing.html#module-
multiprocessing
"16.6.2.10. Listeners and Clients" section
Fix points are
1. Listener argument "authkey" must be a byte string
2. Client argument "authkey" must be a byte string
3. send_bytes argument must be a byte string
This is the server code listed on the section.
$ cat mpserver.py
from multiprocessing.connection import Listener
from array import array
address = ('localhost', 6000) # family is deduced to be 'AF_INET'
listener = Listener(address, authkey='secret password')
conn = listener.accept()
print('connection accepted from', listener.last_accepted)
conn.send([2.25, None, 'junk', float])
conn.send_bytes('hello')
conn.send_bytes(array('i', [42, 1729]))
conn.close()
listener.close()
And the error is
$ python3.2 mpserver.py
Traceback (most recent call last):
File "mpserver1.py", line 5, in <module>
listener = Listener(address, authkey='secret password')
File
"/Users/kosmos/local/stow/py3k/lib/python3.2/multiprocessing/connection.
py", line 100, in __init__
raise TypeError('authkey should be a byte string')
TypeError: authkey should be a byte string
My source code is svn revision 76151.
Regards.
---
Kouki Hashimoto
hsmtkk [at] gmail
----------
assignee: georg.brandl
components: Documentation
files: multiprocessing.rst.diff
keywords: patch
messages: 95035
nosy: georg.brandl, hsmtkk
severity: normal
status: open
title: multiprocessing module, example code error
type: behavior
versions: Python 3.2
Added file: http://bugs.python.org/file15288/multiprocessing.rst.diff
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