[Tutor] Need a mentor, Any help would be great
Hello, I'm just a newbie in python and it would be great if someone could help me in this. I don't know where to start, I'd like to contribute to small opensource projects too which will help me to learn more in python. Thanks & Regards, -Bessen ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need a mentor, Any help would be great
Hello, Thanks for the "Welcome". I'm now working as a System admin in Linux that too a Junior level (L1, only coming to a 6 months in experience). I've got 2 to 3 hrs a day to learn python. I've programmed a little bit before like our college staff given us a challenge to display letter format for any number given as input(upto 9 digit). I've done that using C language. I think i know some basics in C, C++ and a little bit java(like small programs which explains concepts of class and objects). I'd love to program something real that too in python. The system i'm working is Ubuntu 11.04 and the python version is Python 2.7.1+ I'd love to work on something (as i don't know about the specific types) real :) Thanks again, -Bessen On 03/02/2013 01:46 PM, Alan Gauld wrote: On 02/03/13 04:06, bessenkphilip wrote: I'm just a newbie in python and it would be great if someone could help me in this. Welcome, treat this mailing list as a virtual 'someone'. > I don't know where to start, Tell us something about your background. What level of computer skill do you have? Basic user, sysadmin? etc Have you programmed before? In what languages? What OS and Python version are you using? What kind of programs would you like to work on? There are Python tutorials for every level and style, its just a matter of choosing to the right one for you. Then work through one of them and ask questions here. I'd like to contribute to small opensource projects > too which will help me to learn more in python. That's a good goal, especially once you get past the beginner stage Start with SourceForge and search for Python projects. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need a mentor, Any help would be great
Hello, Thank you very much for the help -Bessen On 03/03/2013 01:59 PM, Alan Gauld wrote: On 03/03/13 01:48, bessenkphilip wrote: Thanks for the "Welcome". I'm now working as a System admin in Linux I've got 2 to 3 hrs a day to learn python. In that case I'd start with the official tutorial on python.org. Its targeted at people with a little bit of programming experience moving to Python. It's also fairly *nix biased and relevant for sys admin type tasks. The system i'm working is Ubuntu 11.04 and the python version is Python 2.7.1+ OK, that's a good solid platform. Once you have done the tutorial try automating some of the tasks you don on a regular basis as a first project. Once comfortable go to SourceForge and find something in Python you can contribute too. Testing and Bug fixing is often a good place to start. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Doubt in for loop
Hi all, I'm having a doubt in the below program's 2n'd "for" loop. >>> for n in range(2, 10): ... for x in range(2, n): ... if n % x == 0: ... print n, 'equals', x, '*', n/x ... break ... else: ... # loop fell through without finding a factor ... print n, 'is a prime number' ... 2 is a prime number 3 is a prime number 4 equals 2 * 2 5 is a prime number 6 equals 2 * 3 7 is a prime number 8 equals 2 * 4 9 equals 3 * 3 My doubt is that "will 'x' be always of value 2, if so why that for loop "for x in range(2, n):" i don't know how the first output , as If 2%2==0:(this satisfies the if loop as x =2) , so how the else part came to output i.e 2 is a prime number. Please educate me in this. Thanks in advance, -Bessen ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Doubt in for loop
On 04/04/2013 08:23 AM, Dave Angel wrote: On 04/03/2013 09:53 PM, Steven D'Aprano wrote: On 04/04/13 12:29, bessenkphilip wrote: Hi all, I'm having a doubt in the below program's 2n'd "for" loop. for n in range(2, 10): ... for x in range(2, n): ... if n % x == 0: ... print n, 'equals', x, '*', n/x ... break ... else: ... # loop fell through without finding a factor ... print n, 'is a prime number' ... 2 is a prime number 3 is a prime number 4 equals 2 * 2 5 is a prime number 6 equals 2 * 3 7 is a prime number 8 equals 2 * 4 9 equals 3 * 3 My doubt is that "will 'x' be always of value 2, if so why that for loop "for x in range(2, n):" i don't know how the first output , as If 2%2==0:(this satisfies the if loop as x =2) , so how the else part came to output i.e 2 is a prime number. I'm sorry, I don't understand your question. x is *not* always of value 2. You can see with the last line, 9 equals 3 * 3 x has value 3. The outer loop just checks 2, 3, 4, ... 9 to see whether they are prime. The inner loop actually does the checking: for x in range(2, n): if n % x == 0: print n, 'equals', x, '*', n/x break This tests whether n is divisible by 2, 3, 4, 5, 6, ... up to n-1. If n is divisible by any of those numbers, then n cannot be prime. For example, with n = 9, the inner loop does this: x = 2 Test if 2 is a factor: does 9/2 have remainder zero? No. x = 3 Test if 3 is a factor: does 9/3 have remainder zero? Yes. So 9 is not prime, and 9 = 3 * (9/3) = 3 * 3 If we test it with n = 35, the inner loop would do this: x = 2 Test if 2 is a factor: does 35/2 have remainder zero? No. x = 3 Test if 3 is a factor: does 35/3 have remainder zero? No. x = 4 Test if 4 is a factor: does 35/4 have remainder zero? No. x = 5 Test if 5 is a factor: does 35/5 have remainder zero? Yes. So 35 is not prime, and 35 = 5 * (35/5) = 5 * 7 Notice that this does more work than necessary! Can you see what work it does that is unnecessary? (Hint: what even numbers are prime?) I don't understand the questions either, but I can point out one thing that might be puzzling the OP: When n is 2, the inner loop does nothing, it just skips to the else clause. The reason is that range(2,2) is a null iterator. range(i,j) produces values from i to j-1, or to put it another way values for which i <= n < j If i and j are identical, there's nothing to match it. Thank you very much Steven for explaining this. Yes,Dave, i was having doubt how n=2 came to else part, cleared that too, thank you . ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Coursera Python Course starts today
Thank you. need to check out. Me too completed first 2 weeks but haven't completed the full course. -Bessen On 08/20/2013 05:32 AM, Leam Hall wrote: Hey all, In case I'm not the absolute last person to know, the newest edition of the Coursera "Learn to Program" course started today. It is Python based, free, lasts 7 weeks, and pretty fun. I didn't get a certificate last time as life got in the way. Hope to succeed this time. https://class.coursera.org/programming1-002/class/index Leam ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
