securely overwrite files with Python

[Mathias Waack]

Peter Hansen wrote:

> Mathias Waack wrote:
>> Bart Nessux wrote:
>> 
>>>Is there a shred module in Python?
>> 
>> First: It is not possible. Let me cite some sentences from
>> shred(1):
>> 
>>        CAUTION: Note  that  shred  relies  on  a  very  important
>>        assumption:  that the filesystem overwrites data in place.
>>        This is the traditional way to do things, but many  modern
>>        filesystem  designs  do  not satisfy this assumption.
> 
> I'm fairly sure that at least some "journalling" or "logging" file
> systems, such as ReiserFS, or maybe ext3, on Linux, violate this
> assumption.

shred(1) knows that, the manpage lists the FS from above and a lot
others as examples. 

Mathias