How to control permission of file?

[Schüle Daniel]

Grant Edwards schrieb:
> When one open()s a file (that doesn't exist) for writing , how
> does one control that file's permissions (it's "mode" in Unix
> terms).

what do you mean by "contor file's mode"?

usually you try to open and if you are not allowed
you will get the exception

 >>> try:
...     f = file("/etc/shadow")
...     print f.read()
... except IOError, e:
...     print e
...
[Errno 13] Permission denied: '/etc/shadow'
 >>>

if you want to know more about file attributes
use os.stat and constants from stat module

 >>> import os
 >>> os.stat("/etc/shadow")
(33184, 245390L, 771L, 1, 0, 15, 604L, 1151702662, 1149675585, 1149675585)
 >>>
 >>> import stat
 >>> stat.ST_SIZE
6
 >>> os.stat("/etc/shadow")[stat.ST_SIZE]
604L
 >>>

http://docs.python.org/lib/module-stat.html

hth, Daniel