Thank you.  This will work perfectly.

On Nov 18, 2011, at 11:58 AM, Prasad, Ramit wrote:

> Hi.  I've been using a lot of text files recently, and I'm starting to worry 
> about a user hacking some element by editing the text files.  I know that I 
> can pickle my data instead, creating less easily editable (try saying that 
> five times fast) .dat files, but I'd rather store individual variables rather 
> than lists of objects.  Is there a way to make my text files either read-only 
> or saved in some way that they can't be opened, or at least not so easily as 
> double-clicking on them?  I just want some slightly more secure code, though 
> it's not too important.  I just thought I'd ask.
> ==========================================================================================
> 
> Any file will eventually be able to be reverse engineered, but it matters how 
> much effort you care to obfuscate it. The way you can do it will vary based 
> on your OS. 
> 
> For Windows, you can change the file extension to something that is not read 
> by most text editors '.zxy'. It will still be able to be read if they try and 
> open it with a text editor, but double clicking  will not work by default. 
> You can also try setting the file attribute directly: 
> http://code.activestate.com/recipes/303343-changing-file-attributes-on-windows/
>  
> 
> For *nix/OS X, you can prepend the file with "." as those files are hidden by 
> default on most *nix systems I have used. You can also try to use 
> os.chmod(0###, 'filename').
> 
> 
> Keep in mind that all of these solutions are probably user reversible since 
> the application will have the permissions of the user account it is run as; 
> in most cases this is the same as the logged in user.
> 
> 
> 
> Ramit
> 
> 
> Ramit Prasad | JPMorgan Chase Investment Bank | Currencies Technology
> 712 Main Street | Houston, TX 77002
> work phone: 713 - 216 - 5423
> 
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