[Python-ideas] shutil.symlink to allow non-race replacement of existing link targets
Antoine Pitrou
solipsis at pitrou.net
Thu May 16 07:33:47 EDT 2019
On Thu, 16 May 2019 13:05:48 +0300
Serhiy Storchaka <storchaka at gmail.com>
wrote:
> 16.05.19 11:28, Barry Scott пише:
> > To replace one symlink with another atomically is possible by using rename() or renameat()
> > something like:
> >
> > os.symlink( src, tmp_symlink )
> > os.rename( tmp_symlink, dst )
>
> Somebody can replace tmp_symlink between os.symlink() and os.rename().
Not if tmp_symlink is created in a directory with strict permissions, I
guess.
Regards
Antoine.
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