File attributes

[acatejr@gmail.com]

I know how to "walk" a folder/directory using Python, but I'd like to
check the archive bit for each file. Can anyone make suggestions on
how I might do this? Thanks.

[Ben Cartwright]

Re: File attributes

acatejr@gmail.c om wrote:[color=blue]
> I know how to "walk" a folder/directory using Python, but I'd like to
> check the archive bit for each file. Can anyone make suggestions on
> how I might do this? Thanks.[/color]


Since the archive bit is Windows-specific, your first place to check is
Mark Hammond's Python for Windows Extensions (aka win32all). It's a
quick and painless install; grab it here:

http://python.net/crew/skippy/win32/

Once you have that installed, look in the PyWin32.chm help file for the
function calls you need. If the documentation is too sparse, check
MSDN or google it.

For what you're trying to do:

import win32file
import win32con

def togglefileattri bute(filename, fileattribute, value):
"""Turn a specific file attribute on or off, leaving the other
attributes intact.
"""
bitvector = win32file.GetFi leAttributes(fi lename)
if value:
bitvector |= fileattribute
else:
bitvector &= ~fileattribute
win32file.SetFi leAttributes(fi lename, bitvector)

# Sample usage:
togglefileattri bute('foo.txt', win32con.FILE_A TTRIBUTE_ARCHIV E, True)

--Ben

[Ben Cartwright]

Re: File attributes

Ben Cartwright wrote:[color=blue]
> acatejr@gmail.c om wrote:[color=green]
> > I know how to "walk" a folder/directory using Python, but I'd like to
> > check the archive bit for each file. Can anyone make suggestions on
> > how I might do this? Thanks.[/color]
>
>
> Since the archive bit is Windows-specific, your first place to check is
> Mark Hammond's Python for Windows Extensions (aka win32all). It's a
> quick and painless install; grab it here:
> http://python.net/crew/skippy/win32/
>
> Once you have that installed, look in the PyWin32.chm help file for the
> function calls you need. If the documentation is too sparse, check
> MSDN or google it.
>
> For what you're trying to do:
>
> import win32file
> import win32con
>
> def togglefileattri bute(filename, fileattribute, value):
> """Turn a specific file attribute on or off, leaving the other
> attributes intact.
> """
> bitvector = win32file.GetFi leAttributes(fi lename)
> if value:
> bitvector |= fileattribute
> else:
> bitvector &= ~fileattribute
> win32file.SetFi leAttributes(fi lename, bitvector)
>
> # Sample usage:
> togglefileattri bute('foo.txt', win32con.FILE_A TTRIBUTE_ARCHIV E, True)[/color]

Or to just check the value of the bit:

def fileattributeis set(filename, fileattr):
return bool(win32file. GetFileAttribut es(filename) & fileattr)

print fileattributeis set('foo.txt', win32con.FILE_A TTRIBUTE_ARCHIV E)

--Ben

[Larry Bates]

Re: File attributes

acatejr@gmail.c om wrote:[color=blue]
> I know how to "walk" a folder/directory using Python, but I'd like to
> check the archive bit for each file. Can anyone make suggestions on
> how I might do this? Thanks.
>[/color]
You must have Mark Hammond's win32 package installed, then you can
(barely tested):

import win32api
import win32con

fattrs=win32api .GetFileAttribu tes(filename)
if fattrs & win32con.FILE_A TTRIBUTE_ARCHIV E:
#
# Archive bit set
#

-Larry Bates