[Tutor] can any one help

[Shashwat Anand]

I got the question. I just gave you hints, so as you can try yourself. Also
please use 'Reply all'

On Sun, Jan 31, 2010 at 4:08 AM, invincible patriot <
invincible_patriot at hotmail.com> wrote:

>  I want to use WHILE LOOP in the first one and in the second question we
> need to take a string 'foobar' and then we should make the prog to get the
> following out put
> let me tel u the exact question
>
> Write a small Python program that generates the list of all pairs of
> characters c and
> its doubling 2 c, where c moves through all the letters of the string
> "foobar" and prints it out.
> The result will look like:
> [(’f’, ’ff’), (’o’, ’oo’), (’o’, ’oo’), (’b’, ’bb’), (’a’, ’aa’), (’r’,
> ’rr’)]
>
> thatz the exact 2nd question
> also let me know aboutthe first one
>
> thanks allot
>
> ------------------------------
> From: anand.shashwat at gmail.com
> Date: Sun, 31 Jan 2010 04:05:09 +0530
>
> Subject: Re: [Tutor] can any one help
> To: invincible_patriot at hotmail.com
> CC: tutor at python.org
>
> Tips:
>
> 1.
> range can be stepped down in reverse order
> ex ->
> >>> range(10, 1, -2)
> [10, 8, 6, 4, 2]
>
> 2.
> you can directly get chars of string.
> ex ->
> >>> [i for i in 'foobar']
> ['f', 'o', 'o', 'b', 'a', 'r']
> also
> >>> 2 * 'f'
> 'ff'
>
>
> On Sun, Jan 31, 2010 at 3:56 AM, Shashwat Anand <anand.shashwat at gmail.com>wrote:
>
> seems like homework ;)
> Can you paste your approach here ?
>
> On Sun, Jan 31, 2010 at 3:03 AM, invincible patriot <
> invincible_patriot at hotmail.com> wrote:
>
>
> hi
> i am stuck in few tasks can some one help me in that
> here are first few tasks
>
> 1
> how can i print the following series, using a loop
> 15
> 13
> 11
> ...
> 3
> 1
> -1
> ========
> 2
> Write a small Python program that generates the list of all pairs of
> characters c and
> its doubling 2 c, where c moves through all the letters of the string
> "foobar" and prints it out.
> The result will look like:
> [(’f’, ’ff’), (’o’, ’oo’), (’o’, ’oo’), (’b’, ’bb’), (’a’, ’aa’), (’r’,
> ’rr’)]
>
> please help me out in these two tasks
>
>
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