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_patr...@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.shash...@gmail.com > Date: Sun, 31 Jan 2010 04:05:09 +0530 > > Subject: Re: [Tutor] can any one help > To: invincible_patr...@hotmail.com > CC: tutor@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.shash...@gmail.com>wrote: > > seems like homework ;) > Can you paste your approach here ? > > On Sun, Jan 31, 2010 at 3:03 AM, invincible patriot < > invincible_patr...@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 > > > ------------------------------ > Hotmail: Trusted email with powerful SPAM protection. Sign up now. > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > > > > > ------------------------------ > Hotmail: Trusted email with powerful SPAM protection. Sign up > now.<http://clk.atdmt.com/GBL/go/196390707/direct/01/> >
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