[Tutor] Fwd: Help with basic user-data file

[Rob Andrews]

I'm forwarding this to the tutor list, as I'm swamped at work.

---------- Forwarded message ----------
From: Asrarahmed Kadri <ajkadri at googlemail.com>
Date: Oct 12, 2006 9:17 AM
Subject: Re: [Tutor] Help with basic user-data file
To: Rob Andrews <rob.andrews at gmail.com>


Thanks.
Can you please also tell me how to check the existence of a file using
python builtin functions.


Regards,
Asrar


On 10/12/06, Rob Andrews <rob.andrews at gmail.com> wrote:
> When a login name is being created, you can pull a list of existing
> login names from file, and run a check to see if it is in the list. If
> the new name is in the list, have it kick back a message telling the
> user to try another name.
>
> Also, your program could suggest a new user name in such a case, or
> even assign new users names of its choosing.
>
> The dictionary data structure is handy for the program to use in very
> efficiently matching user names with passwords. But you don't have to
> store the dictionary in a file as a dictionary. It's possible to do
> so, but often easier to use a delimited text file.
>
> On 10/12/06, Asrarahmed Kadri <ajkadri at googlemail.com> wrote:
> > It means there is no need of entering the data in the dictionary,??
> >
> > How will I then implement the uniqueness of loginnames???
> >
> > Thanks for the support.
> > regards,
> > Asrar
> >
> >
> > On 10/12/06, Rob Andrews < rob.andrews at gmail.com> wrote:
> > >
> > > To keep the information, the simplest solution is simply to save it in
> > > a text file that the program can load into memory when it starts up
> > > again. For sensitive information like passwords, a little extra fuss
> > > is generally merited.
> > >
> > > When someone logs in, you can save a value like
> > > time.strftime(time.ctime()) for a nice, human-readable time stamp.
> > > Don't forget to "import time" first.
> > >
> > > -Rob A.
> > >
> > > On 10/12/06, Asrarahmed Kadri <ajkadri at googlemail.com> wrote:
> > > > Folks,
> > > >
> > > > I am trying to modify the userManagement program given in Core Python
> > > > Programming. It uses a dictionary to store user-password information.
> > The
> > > > usernames are the keys and the passwords are the values.
> > > > Now I want is to add a third element; last login time.
> > > > I want to store this information in a file so that the data is not lost
> > once
> > > > the program stops execution.
> > > >
> > > > I am not sure of using time function in python..
> > > > Can anyone help with this issue??
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To HIM you shall return.

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Blogging my outdoors obsession: http://trekkingbob.blogspot.com/