File Permissions

[Lenny Self]

"Fredrik Lundh" <effbot at telia.com> wrote in message
news:sWAr5.5045$HK.235294 at newsc.telia.net...
> Lenny Self wrote:
> > > the first member of the stat tuple (ST_MODE) contains
> > > the permissions, as a bitmask.
> > >
> > > you can use the functions and macros in the "stat" module
> > > to decipher them.
> > >
> > >     st = os.stat(myfile)
> > >     mode = st[stat.ST_MODE]
> > >     if mode & stat.ST_IREAD:
> > >         print "readable"
> > >     if mode & stat.ST_IWRITE:
> > >         print "writable"
> > >     if mode & stat.ST_IEXEC:
> > >         print "executable"
> > >
> > > (etc)
> > >
> > > </F>
> >
> > Thanks for your help but I only seem to be able to check whether or not
the
> > user running the script has "rwx" permissions.  I am looking to find the
> > permissions for owner/group/other, preferably in numeric mode.
>
> did you try printing the "mode" value?  I'm pretty sure
> it does contain the "numeric mode" you're looking for.
> try this:
>
>     st = os.stat(myfile)
>     mode = st[stat.ST_MODE]
>     print "mode is", octal(mode & 0777)
>
> (looking in the stat module source file may also help; it's
> in Python's Lib directory)
>
> </F>
>
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>

Thanks a bunch.

    -- Lenny