Message 110177 - Python tracker

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In-reply-to
Author	pitrou
Recipients	loewis, pitrou, skrah, vstinner
Date	2010年07月13日.12:10:56
SpamBayes Score	4.7534057e-09
Marked as misclassified	No
Message-id	<1279023059.26.0.245683093399.issue9246@psf.upfronthosting.co.za>

Content
In 2.x, os.getcwd() uses a dynamic allocation scheme to accomodate whatever buffer size the current path needs to be represented. In 3.x, the max path length is hardcoded to 1026 bytes or characters, and an error is raised if the current path length is larger than that. Even on systems where MAX_PATH is 1024 (a common value), it is still valid to create paths larger than that (using e.g. os.mkdir()). The attached script shows that os.getcwd() works with a 1032-character path in 2.x, but fails in 3.x.

Content

In 2.x, os.getcwd() uses a dynamic allocation scheme to accomodate whatever buffer size the current path needs to be represented.
In 3.x, the max path length is hardcoded to 1026 bytes or characters, and an error is raised if the current path length is larger than that. Even on systems where MAX_PATH is 1024 (a common value), it is still valid to create paths larger than that (using e.g. os.mkdir()).
The attached script shows that os.getcwd() works with a 1032-character path in 2.x, but fails in 3.x.

History
Date	User	Action	Args
2010年07月13日 12:10:59	pitrou	set	recipients: + pitrou, loewis, vstinner, skrah
2010年07月13日 12:10:59	pitrou	set	messageid: <1279023059.26.0.245683093399.issue9246@psf.upfronthosting.co.za>
2010年07月13日 12:10:57	pitrou	link	issue9246 messages
2010年07月13日 12:10:57	pitrou	create

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