New submission from R. David Murray <rdmur...@bitdance.com>:
At the bottom of http://docs.python.org/library/fcntl.html there is a
"see also" section for the os module that says:
If the locking flags O_SHLOCK and O_EXLOCK are present in the os
module, the os.open() function provides a more platform-independent
alternative to the lockf() and flock() functions.
However, those flags are documented as being "unix only" (ie: no
windows), and in fact Linux does not support them. Alan Cox rejected
support for them back in 2000 according to this linux kernel posting:
http://lkml.indiana.edu/hypermail/linux/kernel/0005.1/1309.html
so it doesn't seem likely linux will ever support them.
Thus, to say that they provide a "more platform independent-alternative"
would appear to be false, since they appear to only be supported on BSD
and derivitives.
----------
assignee: georg.brandl
components: Documentation
keywords: easy
messages: 88904
nosy: georg.brandl, r.david.murray
priority: low
severity: normal
stage: needs patch
status: open
title: fcntl footnote about O_SHLOCK and O_EXLOCK is misleading
type: behavior
versions: Python 2.6, Python 2.7, Python 3.0, Python 3.1
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<http://bugs.python.org/issue6194>
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