How to create a login screen using core python language without using any framework

[Joel Goldstick]

On Fri, Oct 5, 2012 at 5:29 AM, Hans Mulder <hansmu at xs4all.nl> wrote:
> On 5/10/12 10:03:56, shivakrshn49 at gmail.com wrote:
>> I need to develop a simple login page using Python language with
>> two fields and a button, like:
>>
>>     Username, Password, Login
>>
>> I know there are some beautiful Python frameworks like
>>
>>     Django, Grok, WebPy, TurboGears
>>
>> which support web development using Python, but mine is a basic
>> requirement consisting of only 3 screens (pages):
>>
>> * 1st page  -  Login page (Redirects to 2nd page when login button
>>   is clicked)
>> * 2nd page  -  Page with records in the form of a list, with an
>>   option for adding new records (Redirects to 3rd page when "Add
>>   Records" button is clicked)
>> * 3rd page  -  Page with fields, which are saved as records for
>>   the list on 2nd page  (After entering details and clicking Submit)
>
> Implementing your application using any of those frameworks you
> mentioned, would be easy.
>
>> So, I have decided to develop the above functionality using Python
>> **without** using any framework, so that I can have flexibility as
>> well as write my own code.
>
> This is a bad idea.  You'll get much more flexibility using
> an existing framework then you'd ever achieve by reinventing
> the wheel on your own.  Especially if you have no experience
> in this field.
>
>> 1. Is it possible to create a login page using Python without
>> using a framework?
>
> Yes.
>
> But it's a lot of work.  You'd effectively be rewriting all
> the functionality you'd get for free with a framework.  And
> it wouldn't be as flexible, because frameworks can flex in
> directions that you didn't think of.
>
>> 2. I haven't worked on web services and don't know the basics of
>> web development in Python.
>
> In that case, your chances of success are fairly slim.
>
>> 3. If possible, can you provide me an example on how to create a
>> login page using Python and achieve the functionality described
>> above?
>
> The frameworks you mentioned earlier come with tutorials.
> These tutorials contain such examples.
>
> You should really use an existing framework.  Once you're
> aware of how much functionality you get out of a framework
> (any of them), you wouldn't dream of rewriting all that
> functionality on your own.

I totally agree about using a framework.  You say you want a 'simple'
3 page website.  Why do you think it is simple?  You say you don't
have any skills at creating websites with python.  From your
description, you will need to build a directory of entries, a form,
and attach it to a database, so that means you also need to understand
sql (or something!). You need to display individual records I imagine.
 Do you need to edit them after they are created?  How are you going
to manage the accounts?  Will you create them?  Will you let the
visitor create an account?  Where will you store the account
information?  Do different accounts have different permissions?

If you install django (for instance), go through the online tutorials
in about 2 hours, you could probably build your specification in a
day.  Even if you have problems there is an active django mailing list
to ask specific questions.  I haven't tried the other frameworks, but
there might be similar help available for them.


-- 
Joel Goldstick