[Tutor] New Programmer - Designing
Hello All, I am new to this email list as can see from subject, my name is Christopher. I am trying to learn how to design a program but I seem not to find any resource online that will teach how to design the program before you start programming. I would like to create a program that will filter a file and put the information into two database (text based for now) So how would I start the process of designing such a application? Also because this is a part of a bigger application that will have many user interfaces, phone, web, mobile I want to learn how to keep code apart from UI. For example if a program was created to take a person information how would that look? I tried to think of basic process. so in this example I know the following would need be done: user would pick option on UI to Add, Update, Delete, if add picked then grab information from UI as varibles (I am assuming) then process would check varibles types are correct and existing then process would either give error or continue to storing the information So how would one go about designing this module? Would this be the right name to call this part of a bigger program? Thank you for your assistance, please don't mind my writing I am not a good writer. Sincerely in Christ, Christopher ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
akuma ukpo wrote: > I am defining the function in one .py file and testing the function in > another .py file. > > this is my code for the test: > > def test_quantity_convert(self): > self.assertEqual(gallons_to_cups(0), 16) > self.assertEqual(gallons_to_cups(100), 1600) > > this is my code for the defined function: > > def gallons_to_cups(quant): > """ > Takes quantity 'quant' in Gallons and computes and > returns the equivalent Cup quantity > """ > return 16 * quant + 0 > > > what am i doing wrong? This line in your test code is wrong: > self.assertEqual(gallons_to_cups(0), 16) By the way, adding 0 does not change the result here: > return 16 * quant + 0 ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
On Thu, Mar 7, 2013 at 2:36 PM, akuma ukpo wrote: > I am defining the function in one .py file and testing the function in > another .py file. > > this is my code for the test: > > def test_quantity_convert(self): > self.assertEqual(gallons_to_cups(0), 16) Good, thanks for showing us how you're testing this. I disagree with this specific test. If I don't have any gallons, how can that become sixteen cups? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
On Thu, Mar 7, 2013 at 4:36 PM, akuma ukpo wrote: > I am defining the function in one .py file and testing the function in > another .py file. > > this is my code for the test: > > def test_quantity_convert(self): > self.assertEqual(gallons_to_cups(0), 16) > self.assertEqual(gallons_to_cups(100), 1600) > > this is my code for the defined function: > > def gallons_to_cups(quant): > """ > Takes quantity 'quant' in Gallons and computes and > returns the equivalent Cup quantity > """ > return 16 * quant + 0 > > > what am i doing wrong? > > > On Thu, Mar 7, 2013 at 4:28 PM, akuma ukpo wrote: > >> i now know how to define functions. >> >> My problem is i don't know what particular function that converts gallons >> directly to cups. >> > Knowing how many cups in a gallon is a google search away. I think its 128/8 but you should check http://lmgtfy.com/?q=how+many+cups+in+a+gallon >> However, i derived a function that converts celsius to fahrenheit (9/5 * >> temperature + 32) tested it using python and it passed the test. >> >> I need a function for gallons to cups in a similar format. >> >> On Thu, Mar 7, 2013 at 4:14 PM, Danny Yoo wrote: >> >>> On Thu, Mar 7, 2013 at 1:55 PM, akuma ukpo wrote: >>> > i don't know how to write functions. so i guess that is where i'm >>> stuck. i >>> > was following a tutorial on my lab document but i still did not >>> understand >>> > what to do. i will attach the pdf and python files as well. >>> >>> I am CCing the rest of the Python tutor mailing list. Please use >>> reply-to-all when responding to messages on Tutor. I'm omitting the >>> attachments you sent me, as they're not that useful to me. >>> >>> >>> Since you do not know how to write functions yet, I would strongly >>> focus on solving that confusion first. If you don't know how to write >>> any functions, then you will have difficulty with your problem set. >>> >>> >>> Has your instructor given you any information on how to write a >>> function? For example, >>> >>> http://www.learnpython.org/page/Functions >>> >> >> >> >> -- >> *Akuma* >> > > > > -- > *Akuma* > > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > > -- Joel Goldstick http://joelgoldstick.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
I am defining the function in one .py file and testing the function in another .py file. this is my code for the test: def test_quantity_convert(self): self.assertEqual(gallons_to_cups(0), 16) self.assertEqual(gallons_to_cups(100), 1600) this is my code for the defined function: def gallons_to_cups(quant): """ Takes quantity 'quant' in Gallons and computes and returns the equivalent Cup quantity """ return 16 * quant + 0 what am i doing wrong? On Thu, Mar 7, 2013 at 4:28 PM, akuma ukpo wrote: > i now know how to define functions. > > My problem is i don't know what particular function that converts gallons > directly to cups. > > However, i derived a function that converts celsius to fahrenheit (9/5 * > temperature + 32) tested it using python and it passed the test. > > I need a function for gallons to cups in a similar format. > > On Thu, Mar 7, 2013 at 4:14 PM, Danny Yoo wrote: > >> On Thu, Mar 7, 2013 at 1:55 PM, akuma ukpo wrote: >> > i don't know how to write functions. so i guess that is where i'm >> stuck. i >> > was following a tutorial on my lab document but i still did not >> understand >> > what to do. i will attach the pdf and python files as well. >> >> I am CCing the rest of the Python tutor mailing list. Please use >> reply-to-all when responding to messages on Tutor. I'm omitting the >> attachments you sent me, as they're not that useful to me. >> >> >> Since you do not know how to write functions yet, I would strongly >> focus on solving that confusion first. If you don't know how to write >> any functions, then you will have difficulty with your problem set. >> >> >> Has your instructor given you any information on how to write a >> function? For example, >> >> http://www.learnpython.org/page/Functions >> > > > > -- > *Akuma* > -- *Akuma* ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
i now know how to define functions. My problem is i don't know what particular function that converts gallons directly to cups. However, i derived a function that converts celsius to fahrenheit (9/5 * temperature + 32) tested it using python and it passed the test. I need a function for gallons to cups in a similar format. On Thu, Mar 7, 2013 at 4:14 PM, Danny Yoo wrote: > On Thu, Mar 7, 2013 at 1:55 PM, akuma ukpo wrote: > > i don't know how to write functions. so i guess that is where i'm stuck. > i > > was following a tutorial on my lab document but i still did not > understand > > what to do. i will attach the pdf and python files as well. > > I am CCing the rest of the Python tutor mailing list. Please use > reply-to-all when responding to messages on Tutor. I'm omitting the > attachments you sent me, as they're not that useful to me. > > > Since you do not know how to write functions yet, I would strongly > focus on solving that confusion first. If you don't know how to write > any functions, then you will have difficulty with your problem set. > > > Has your instructor given you any information on how to write a > function? For example, > > http://www.learnpython.org/page/Functions > -- *Akuma* ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
On Thu, Mar 7, 2013 at 1:55 PM, akuma ukpo wrote: > i don't know how to write functions. so i guess that is where i'm stuck. i > was following a tutorial on my lab document but i still did not understand > what to do. i will attach the pdf and python files as well. I am CCing the rest of the Python tutor mailing list. Please use reply-to-all when responding to messages on Tutor. I'm omitting the attachments you sent me, as they're not that useful to me. Since you do not know how to write functions yet, I would strongly focus on solving that confusion first. If you don't know how to write any functions, then you will have difficulty with your problem set. Has your instructor given you any information on how to write a function? For example, http://www.learnpython.org/page/Functions ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
On 07/03/2013 20:23, akuma ukpo wrote: I have a python lab to do but for some reason i can't understand. (a) Write a function which converts from gallons to cups2 (b) Now we’d like to be able to convert from cups to milliliters, since metric measurements are easier to convert between. Implement a function which does this. (c) We’d also like to be able to easily convert gallons into milliliters, so implement a function which does this -- /Akuma/ I'll assume that you don't know how a cup is defined so please read this http://gwydir.demon.co.uk/jo/units/volume.htm#small. Then write some code, test it and if you have problems please get back to us. -- Cheers. Mark Lawrence ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
> (a) Write a function which converts from gallons to cups2 Do you know how to write functions? Can you write a function that takes a number and returns twice that number, for example? Show us what you have seen already, and we may be able to start from there. The question you are asking does not tell us anything useful, unfortunately. More specifically, it doesn't tell us where you are getting confused. Since we can't just solve the problem for you, the best thing you can do is to help us see where you are getting stuck. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Need help with function coding.
On Thu, Mar 7, 2013 at 3:23 PM, akuma ukpo wrote: > I have a python lab to do but for some reason i can't understand. > > > (a) Write a function which converts from gallons to cups2 > (b) Now we’d like to be able to convert from cups to milliliters, since > metric measurements > are easier to convert between. Implement a function which does this. > (c) We’d also like to be able to easily convert gallons into milliliters, > so implement a > function which does this > > Do you know how to define a function? Do you know how your function can return a value? Do you know the formula for converting gallons to cups. Hint: there are 8 ounces in a cup and 128 ounces in a gallon. There are a thousand milliliters in a liter. I'm sure you can google how many liters in a gallon. So write what you have tried so far > -- > *Akuma* > > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > > -- Joel Goldstick http://joelgoldstick.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Need help with function coding.
I have a python lab to do but for some reason i can't understand. (a) Write a function which converts from gallons to cups2 (b) Now we’d like to be able to convert from cups to milliliters, since metric measurements are easier to convert between. Implement a function which does this. (c) We’d also like to be able to easily convert gallons into milliliters, so implement a function which does this -- *Akuma* ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Fwd: findall() returns tuples or string?
Thanks Devin. now I have a better understanding of what happens. Let me explore finditer- hearing for the first time. On Mon, Mar 4, 2013 at 8:47 PM, Devin Jeanpierre wrote: > On Mon, Mar 4, 2013 at 8:22 PM, Charles Leviton > wrote: > > I have some confusion regarding when findall returns a list of strings > and > > when it returns a list of tuples. > > Would appreciate an explanation. > > If there are no groups, it returns a list of strings, where the > strings are the whole match. > > If there is one group, it returns a list of strings, where the strings > are the content of the group. > > Otherwise, it returns a list of tuples of strings, where the tuples > contain the group contents (the same as if an individual match had its > groups() method called). > > If you want consistency, use finditer instead of findall. > http://docs.python.org/2/library/re.html#re.finditer > > -- Devin > ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] mysqlite
On 07/03/13 00:35, Lolo Lolo wrote: Because i find following your tutorials very easy i have looked > at the other topics you have on your site. > i notice they are not available in Python 3 Not yet, I'm still working on them. :-) I have been very busy at work the last 2-3 years so made little progress but last month I took voluntary redundancy and plan on taking a 6 month sabbatical so hopefully I will have time to complete the v3 tutor. but doesnt this matter? or would i need to wait for a python 3 version? You should be able to translate the v2 to v3 fairly easily. Also which could i read next network programming or writing web applications? The web apps bit is very thin, even in v2, it needs a lot of work so I'd say networking or OS are a better bet for now. The networking topic really works best if you read the 3 topics in order: OS, IPC, Networking because they build on each other. If you are familiar with computing concepts like processes, pipes and so on you could reads them separately but otherwise I'd follow through in order. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
