Message 382746 - Python tracker

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Author	nedsociety
Recipients	nedsociety
Date	2020-12-08.15:55:37
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1607442937.17.0.755090753747.issue42602@roundup.psfhosted.org>
In-reply-to

Content
>>> import os >>> r, w = os.pipe() >>> os.lseek(w, 10, 0) 10 >>> wf = open(w, 'w') >>> wf.seekable() True This happens on Windows. Consequently seek() works for these objects but they seems to be no-op. This may confuse libraries that depend on seeking. The named pipe objects (via CreateNamedPipe -> open_osfhandle -> open()) exhibit the same behavior.

>>> import os
>>> r, w = os.pipe()
>>> os.lseek(w, 10, 0)
10
>>> wf = open(w, 'w')
>>> wf.seekable()
True

This happens on Windows. Consequently seek() works for these objects but they seems to be no-op. This may confuse libraries that depend on seeking.

The named pipe objects (via CreateNamedPipe -> open_osfhandle -> open()) exhibit the same behavior.

History
Date	User	Action	Args
2020-12-08 15:55:37	nedsociety	set	recipients: + nedsociety
2020-12-08 15:55:37	nedsociety	set	messageid: <1607442937.17.0.755090753747.issue42602@roundup.psfhosted.org>
2020-12-08 15:55:37	nedsociety	link	issue42602 messages
2020-12-08 15:55:37	nedsociety	create