Message 144658 - Python tracker

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In-reply-to
Author	vstinner
Recipients	pitrou, vstinner
Date	2011年09月30日.00:09:49
SpamBayes Score	2.692945e-05
Marked as misclassified	No
Message-id	<1317341390.65.0.255779328054.issue13072@psf.upfronthosting.co.za>

Content
In Python 3.2, when you get a buffer from array.array('u'), "u" is used as buffer format. The format is supposed to be a format from the struct module, and "u" is an invalid struct format. "w" is used on wide mode. I just upgraded the array module to use the new Unicode API (PEP 393). The array now uses a Py_UCS4 buffer. I used "I" or "L" format depending on the size of int and long C types. It would be better to use a format for a Py_UCS4 string, but struct doesn't support such type. For Python 2.7 and 3.2, I don't know if it is really a bug or not.

Content

In Python 3.2, when you get a buffer from array.array('u'), "u" is used as buffer format. The format is supposed to be a format from the struct module, and "u" is an invalid struct format. "w" is used on wide mode.
I just upgraded the array module to use the new Unicode API (PEP 393). The array now uses a Py_UCS4 buffer. I used "I" or "L" format depending on the size of int and long C types.
It would be better to use a format for a Py_UCS4 string, but struct doesn't support such type.
For Python 2.7 and 3.2, I don't know if it is really a bug or not.

History
Date	User	Action	Args
2011年09月30日 00:09:50	vstinner	set	recipients: + vstinner, pitrou
2011年09月30日 00:09:50	vstinner	set	messageid: <1317341390.65.0.255779328054.issue13072@psf.upfronthosting.co.za>
2011年09月30日 00:09:50	vstinner	link	issue13072 messages
2011年09月30日 00:09:49	vstinner	create

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