[Python-Dev] mailbox._create_temporary without checking the file permission

Dasn dasn at lavabit.com
Fri Aug 17 11:33:19 CEST 2007


On 17/08/07 14:41 +0800, Dasn wrote:
>Hi, guys. 
>
>_create_temporary is not tracking the perm bits of the original mbox.
>
>$ ls -l me
>-rw-------  1 dasn  users  274886 Aug 16 08:43 me
>$ python
>Python 2.5.1 (r251:54863,  May  8 2007,  07:32:21)
>[GCC 3.3.5 (propolice)] on openbsd4
>Type "help",  "copyright",  "credits" or "license" for more information.
>>>> from mailbox import mbox
>>>> m=mbox('me')
>>>> m.pop(0)
><mailbox.mboxMessage instance at 0x84865ecc>
>>>> m.flush()
>>>>^D
>$ ls -l me
>-rwxr-xr-x  1 dasn  users  268438 Aug 16 09:26 me*
>$
>

I think there are 2 problems should be considered in the _create_temporary:
 1. what to do if we have no write permission to the directory (e.g.
/var/mail/), what about using tempfile module?
 2. keep the temp file as the same mode as the original one.

-- 
Dasn



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