Re: Need Help with Programming Science Project

2014-01-24 Thread Gregory Ewing
theguy wrote: If I could get it to actually calculate the "points" for AUTHOR_SCOREBOARD properly, then all my problems would be solved. Have you tried getting it to print out the values it's getting for the scores, and comparing them with what you calculate by hand? -- Greg -- https://mail.py

Re: Python declarative

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 6:18 PM, Frank Millman wrote: > I have realised that we unlikely to come to an agreement on this in the near > future, as our philosophies are completely different. > > You have stated that your objective is to express as much as possible in > Python code. > > I have stated

Re: Need Help with Programming Science Project

2014-01-24 Thread Gregory Ewing
theguy wrote: I so far have three different authors in the program and have already put in the example text but for some reason, the program always leans toward one specific author, Suzanne Collins, no matter what insane number I try to put in or how much I tinker with the coding. It's obvious

Re: Python declarative

2014-01-24 Thread Frank Millman
"Chris Angelico" wrote in message news:CAPTjJmpi-kvJAVs2gK+nH5n6q3REkJaKR=czerfzugdk8_v...@mail.gmail.com... > On Fri, Jan 24, 2014 at 11:49 PM, Frank Millman > wrote: >> > [...] I have realised that we unlikely to come to an agreement on this in the near future, as our philosophies are com

Re: should I transfer 'iterators' between functions?

2014-01-24 Thread Steven D'Aprano
On Fri, 24 Jan 2014 22:37:37 -0800, seaspeak wrote: > take the following as an example, which could work well. But my concern > is, will list 'l' be deconstructed after function return? and then > iterator point to nowhere? That would be a pretty awful bug for Python, since it would like lead to

Re: should I transfer 'iterators' between functions?

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 5:37 PM, wrote: > take the following as an example, which could work well. > But my concern is, will list 'l' be deconstructed after function return? and > then iterator point to nowhere? > > def test(): > l = [1, 2, 3, 4, 5, 6, 7, 8] > return iter(l) > def main()

should I transfer 'iterators' between functions?

2014-01-24 Thread seaspeak
take the following as an example, which could work well. But my concern is, will list 'l' be deconstructed after function return? and then iterator point to nowhere? def test(): l = [1, 2, 3, 4, 5, 6, 7, 8] return iter(l) def main(): for i in test(): print(i) -- https://m

Re: Need Help with Programming Science Project

2014-01-24 Thread Dave Angel
kvxde...@gmail.com Wrote in message: > Alright. I have the code here. Now, I just want to note that the code was not > designed to work "quickly" or be very well-written. It was rushed, as I only > had a few days to finish the work, and by the time I wrote the program, I > hadn't worked with Py

Re: Trying to understand this moji-bake

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 3:37 PM, Steven D'Aprano wrote: > But using Python 2.7, I get a really bad case of moji-bake: > > [steve@ando ~]$ python2.7 -c "print u'ñøλπйж'" > ñøλÏйж What's 2.7's default source code encoding? I thought it was ascii, but maybe it's assuming (in the absence of a ma

Re: Trying to understand this moji-bake

2014-01-24 Thread Cameron Simpson
On 25Jan2014 04:37, Steven D'Aprano wrote: > I have an unexpected display error when dealing with Unicode strings, and > I cannot understand where the error is occurring. I suspect it's not > actually a Python issue, but I thought I'd ask here to start. > > Using Python 3.3, if I print a unico

Re: generate De Bruijn sequence memory and string vs lists

2014-01-24 Thread Greg Ewing
Vincent Davis wrote: True, the "all you want is a mapping" is not quite true. I actually plan to plot frequency (the number of times an observed sub sequence overlaps a value in the De Bruijn sequence) The way the sub sequences overlap is important to me and I don't see a way go from base-k (or

Re: Need Help with Programming Science Project

2014-01-24 Thread theguy
On Friday, January 24, 2014 7:06:55 PM UTC-8, Rustom Mody wrote: > On Saturday, January 25, 2014 8:12:41 AM UTC+5:30, kvxd...@gmail.com wrote: > > > Alright. I have the code here. Now, I just want to note that the code was > > not designed to work "quickly" or be very well-written. It was rushed,

Trying to understand this moji-bake

2014-01-24 Thread Steven D'Aprano
I have an unexpected display error when dealing with Unicode strings, and I cannot understand where the error is occurring. I suspect it's not actually a Python issue, but I thought I'd ask here to start. Using Python 3.3, if I print a unicode string from the command line, it displays correctly

Re: Need Help with Programming Science Project

2014-01-24 Thread Rustom Mody
On Saturday, January 25, 2014 8:12:41 AM UTC+5:30, kvxd...@gmail.com wrote: > Alright. I have the code here. Now, I just want to note that the code was not > designed to work "quickly" or be very well-written. It was rushed, as I only > had a few days to finish the work, and by the time I wrote t

Re: Need Help with Programming Science Project

2014-01-24 Thread kvxdelta
Alright. I have the code here. Now, I just want to note that the code was not designed to work "quickly" or be very well-written. It was rushed, as I only had a few days to finish the work, and by the time I wrote the program, I hadn't worked with Python (which I never had TOO much experience wi

Re: The potential for a Python 2.8.

2014-01-24 Thread Grant Edwards
On 2014-01-25, Roy Smith wrote: > In article , > Grant Edwards wrote: > >> On 2014-01-24, Roy Smith wrote: >> > In article , >> > Chris Angelico wrote: >> > >> >> On Fri, Jan 24, 2014 at 1:22 PM, Roy Smith wrote: >> >> >> Python 2.8j? >> >> > >> >> > You're imagining things. >> >> >> >> Get

Re: Need Help with Programming Science Project

2014-01-24 Thread Roy Smith
In article , Ben Finney wrote: > bob gailer writes: > > > On 1/24/2014 5:05 AM, theguy wrote: > > > I would post the code, but I don't know if it's fine to put it here, > > > as it contains pieces from books. I do believe that would go against > > > copyright laws. > > > AFAIK copyright laws

Re: Need Help with Programming Science Project

2014-01-24 Thread Terry Reedy
On 1/24/2014 7:34 PM, Chris Angelico wrote: On Sat, Jan 25, 2014 at 10:38 AM, bob gailer wrote: On 1/24/2014 5:05 AM, theguy wrote: I have a science project that involves designing a program which can examine a bit of text with the author's name given, then figure out who the author is if ano

Re: Class and instance related questions.

2014-01-24 Thread Terry Reedy
On 1/24/2014 3:45 PM, Chris Angelico wrote: On Sat, Jan 25, 2014 at 7:32 AM, Asaf Las wrote: On Friday, January 24, 2014 6:37:29 PM UTC+2, Chris Angelico wrote: On Sat, Jan 25, 2014 at 3:31 AM, Asaf Las wrote: Hi Is there way to get list of instances of particular class through class itself?

Re: The potential for a Python 2.8.

2014-01-24 Thread Tim Chase
On 2014-01-24 19:56, Roy Smith wrote: > In article , > Grant Edwards wrote: > > > On 2014-01-24, Roy Smith wrote: > > > In article > > > , Chris > > > Angelico wrote: > > > > > >> On Fri, Jan 24, 2014 at 1:22 PM, Roy Smith > > >> wrote: > > >> >> Python 2.8j? > > >> > > > >> > You're imaginin

Re: Need Help with Programming Science Project

2014-01-24 Thread Ben Finney
bob gailer writes: > On 1/24/2014 5:05 AM, theguy wrote: > > I would post the code, but I don't know if it's fine to put it here, > > as it contains pieces from books. I do believe that would go against > > copyright laws. > AFAIK copyright laws apply to reproducing something for profit. That's

Re: The potential for a Python 2.8.

2014-01-24 Thread Roy Smith
In article , Grant Edwards wrote: > On 2014-01-24, Roy Smith wrote: > > In article , > > Chris Angelico wrote: > > > >> On Fri, Jan 24, 2014 at 1:22 PM, Roy Smith wrote: > >> >> Python 2.8j? > >> > > >> > You're imagining things. > >> > >> Get real... s'not gonna happen. > >> > > I wouldn'

Re: Need Help with Programming Science Project

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 10:38 AM, bob gailer wrote: > On 1/24/2014 5:05 AM, theguy wrote: >> >> I have a science project that involves designing a program which can >> examine a bit of text with the author's name given, then figure out who the >> author is if another piece of example text without

Re: Need Help with Programming Science Project

2014-01-24 Thread bob gailer
On 1/24/2014 5:05 AM, theguy wrote: I have a science project that involves designing a program which can examine a bit of text with the author's name given, then figure out who the author is if another piece of example text without the name is given. I so far have three different authors in th

Re: Class and instance related questions.

2014-01-24 Thread Dave Angel
Asaf Las Wrote in message: > On Friday, January 24, 2014 10:45:30 PM UTC+2, Chris Angelico wrote: >> On Sat, Jan 25, 2014 at 7:32 AM, Asaf Las wrote: >> > On Friday, January 24, 2014 6:37:29 PM UTC+2, Chris Angelico wrote: >> >> >> It's possible to unbind the name, but every instance retains a

Re: Can post a code but afraid of plagiarism

2014-01-24 Thread bob gailer
I had offered to provide some off-line tutoring. My reaction is exactly what you are saying - he needs to learn the basics. The code he sent me (after much asking to see some code) was buggy, and a lot of it were the various suggestions we all made. I feel for indar. He is in over his head. I

Re: Class and instance related questions.

2014-01-24 Thread Asaf Las
On Friday, January 24, 2014 11:18:08 PM UTC+2, Chris Angelico wrote: > On Sat, Jan 25, 2014 at 8:03 AM, Asaf Las wrote: > > Chris, i like answers which open doors to my curiosity :-) > > yet i should spend my credits very carefully :-) > Trust me, there is no limit to what you can learn when you h

Re: Class and instance related questions.

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 8:03 AM, Asaf Las wrote: > Chris, i like answers which open doors to my curiosity :-) > yet i should spend my credits very carefully :-) Trust me, there is no limit to what you can learn when you have that kind of curiosity! Ask more questions and you'll get more details.

Re: Class and instance related questions.

2014-01-24 Thread Asaf Las
On Friday, January 24, 2014 10:45:30 PM UTC+2, Chris Angelico wrote: > On Sat, Jan 25, 2014 at 7:32 AM, Asaf Las wrote: > > On Friday, January 24, 2014 6:37:29 PM UTC+2, Chris Angelico wrote: > >> On Sat, Jan 25, 2014 at 3:31 AM, Asaf Las wrote: > >> > Hi > >> > Is there way to get list of instan

Re: Single Object Detection and Tracking Steps

2014-01-24 Thread Giorgos Tzampanakis
On 2014-01-24, hottrac...@gmail.com wrote: > I am doing single object detection and tracking in a video file using > python & opencv2. As far I know the steps are, > > Video to frame conversion > Grayscale conversion > Thresholding > After phase 3, I got sequence of binary images. > > My questions

Re: Class and instance related questions.

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 7:32 AM, Asaf Las wrote: > On Friday, January 24, 2014 6:37:29 PM UTC+2, Chris Angelico wrote: >> On Sat, Jan 25, 2014 at 3:31 AM, Asaf Las wrote: >> > Hi >> > Is there way to get list of instances of particular >> > class through class itself? via metaclass or any other m

Re: Class and instance related questions.

2014-01-24 Thread Asaf Las
Hi Chris Thanks for answers On Friday, January 24, 2014 6:37:29 PM UTC+2, Chris Angelico wrote: > On Sat, Jan 25, 2014 at 3:31 AM, Asaf Las wrote: > > Hi > > Is there way to get list of instances of particular > > class through class itself? via metaclass or any other method? > Not automatical

Re: Python declarative

2014-01-24 Thread sertorbe
Hi again , I'm sorry I dind't reply earlier I still hav enot added myself to the list (I'm doing this trhough google groups). Thanks Asaf, but I don't like having the code and the GUI separated. First,I'm not aiming to not programmers (or people qho don't want to be one) because they may be ab

Re: The potential for a Python 2.8.

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 4:17 AM, Terry Reedy wrote: > In this case, the explanation is as funny as the joke. I have to agree. But hey, it passes the time... ChrisA -- https://mail.python.org/mailman/listinfo/python-list

Re: The potential for a Python 2.8.

2014-01-24 Thread Terry Reedy
On 1/24/2014 10:57 AM, Chris Angelico wrote: On Sat, Jan 25, 2014 at 2:36 AM, Grant Edwards wrote: On 2014-01-24, Roy Smith wrote: In article , Chris Angelico wrote: On Fri, Jan 24, 2014 at 1:22 PM, Roy Smith wrote: Python 2.8j? You're imagining things. Get real... s'not gonna happ

Re: Class and instance related questions.

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 3:31 AM, Asaf Las wrote: > Hi > > Is there way to get list of instances of particular > class through class itself? via metaclass or any other method? Not automatically, but you can make a class that keeps track of its instances with a weak reference system. > Another que

Class and instance related questions.

2014-01-24 Thread Asaf Las
Hi Is there way to get list of instances of particular class through class itself? via metaclass or any other method? Another question - if class is object is it possible to delete it? If it is possible then how instances of that class will behave? Thanks Asaf -- https://mail.python.org/

Re: Python declarative

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 3:28 AM, Matěj Cepl wrote: > On 2014-01-24, 11:18 GMT, you wrote: >> Write your rendering engine as a few simple helper functions, >> and then put all the rest in as code instead of XML. The >> easiest way to go about it is to write three forms, from >> scratch, and then lo

Re: Python declarative

2014-01-24 Thread Matěj Cepl
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 2014-01-24, 11:18 GMT, you wrote: > Write your rendering engine as a few simple helper functions, > and then put all the rest in as code instead of XML. The > easiest way to go about it is to write three forms, from > scratch, and then look at th

Re: datetime as subclass of date

2014-01-24 Thread Skip Montanaro
One thing that always reinforced my notion that issubclass(datetime.datetime, datetime.date) should be False is that the presence of of date and time methods gives me a mental image of delegation, not inheritance. That is, it "feels" like a datetime object is the aggregation of a date object and a

Re: The potential for a Python 2.8.

2014-01-24 Thread Chris Angelico
On Sat, Jan 25, 2014 at 2:36 AM, Grant Edwards wrote: > On 2014-01-24, Roy Smith wrote: >> In article , >> Chris Angelico wrote: >> >>> On Fri, Jan 24, 2014 at 1:22 PM, Roy Smith wrote: >>> >> Python 2.8j? >>> > >>> > You're imagining things. >>> >>> Get real... s'not gonna happen. >>> >> I wo

Re: The potential for a Python 2.8.

2014-01-24 Thread Grant Edwards
On 2014-01-24, Roy Smith wrote: > In article , > Chris Angelico wrote: > >> On Fri, Jan 24, 2014 at 1:22 PM, Roy Smith wrote: >> >> Python 2.8j? >> > >> > You're imagining things. >> >> Get real... s'not gonna happen. >> > I wouldn't bet on that. The situation keeps getting tensor and > tens

Re: The potential for a Python 2.8.

2014-01-24 Thread Mark Lawrence
On 24/01/2014 09:33, wxjmfa...@gmail.com wrote: [double spacing snipped for the 10**infinity time] Le vendredi 24 janvier 2014 01:42:41 UTC+1, Terry Reedy a écrit : This will never happen. Python 3 is the escape from several dead-ends in Python 2. The biggest in impact is the use of un-accente

Re: Can post a code but afraid of plagiarism

2014-01-24 Thread Piet van Oostrum
indar kumar writes: > On Saturday, January 18, 2014 3:21:42 PM UTC-7, indar kumar wrote: >> Hi, >> >> >> >> I want to show a code for review but afraid of plagiarism issues. >> Kindly, suggest how can I post it for review here without masking it >> visible for public > > Can I do the following

Re: Elementree and insert new element if it is not present - FIXED

2014-01-24 Thread Neil Cerutti
On 2014-01-24, Tharanga Abeyseela wrote: > manged to fix it. need to add the namespace when checking the > condition. I wish there was a rule that if your xml doesn't need a namespace it doesn't use one. They are a pain when there's just one useless namespace. But maybe I'm just naive. -- Neil

Re: Python declarative

2014-01-24 Thread Chris Angelico
On Fri, Jan 24, 2014 at 11:49 PM, Frank Millman wrote: > > "Chris Angelico" wrote in message > news:captjjmo+euy439wb0c8or+zacyenr844hakwl3i2+55dde8...@mail.gmail.com... >> On Fri, Jan 24, 2014 at 8:21 PM, Frank Millman wrote: >>> I find that I am using JSON and XML more and more in my project,

Re: Python declarative

2014-01-24 Thread Burak Arslan
On 01/24/14 11:21, Frank Millman wrote: > I store database metadata in the database itself. I have a table that > defines each table in the database, and I have a table that defines each > column. Column definitions include information such as data type, allow > null, allow amend, maximum length

Re: generate De Bruijn sequence memory and string vs lists

2014-01-24 Thread Vincent Davis
On Fri, Jan 24, 2014 at 2:23 AM, Peter Otten <__pete...@web.de> wrote: > Then, how do you think Python /knows/ that it has to repeat the code 10 > times on my "slow" and 100 times on your "fast" machine? It runs the bench > once, then 10, then 100, then 1000 times -- until there's a run that takes

Re: generate De Bruijn sequence memory and string vs lists

2014-01-24 Thread Vincent Davis
On Fri, Jan 24, 2014 at 2:29 AM, Gregory Ewing wrote: > If all you want is a mapping between a sequence of > length n and compact representation of it, there's > a much simpler way: just convert it to a base-k > integer, where k is the size of the alphabet. > > The resulting integer won't be any l

Re: Python declarative

2014-01-24 Thread Frank Millman
"Rustom Mody" wrote in message news:39e1dd33-2162-40ea-8676-d27c8360a...@googlegroups.com... > On Friday, January 24, 2014 2:51:12 PM UTC+5:30, Frank Millman wrote: > Comments welcome. > > Of json/XML/yml I prefer yml because it has the terseness of json and the > structuredness of xml -- well

Re: Python declarative

2014-01-24 Thread Frank Millman
"Chris Angelico" wrote in message news:captjjmo+euy439wb0c8or+zacyenr844hakwl3i2+55dde8...@mail.gmail.com... > On Fri, Jan 24, 2014 at 8:21 PM, Frank Millman wrote: >> I find that I am using JSON and XML more and more in my project, so I >> thought I would explain what I am doing to see if othe

Re: Python declarative

2014-01-24 Thread Asaf Las
On Wednesday, January 15, 2014 7:02:08 PM UTC+2, Sergio Tortosa Benedito wrote: > Hi I'm developing a sort of language extension for writing GUI programs > called guilang, right now it's written in Lua but I'm considreing Python > instead (because it's more tailored to alone applications). My quest

Re: Python declarative

2014-01-24 Thread Chris Angelico
On Fri, Jan 24, 2014 at 8:21 PM, Frank Millman wrote: > I find that I am using JSON and XML more and more in my project, so I > thought I would explain what I am doing to see if others think this is an > acceptable approach or if I have taken a wrong turn. Please don't take this the wrong way, bu

Re: Need Help with Programming Science Project

2014-01-24 Thread Peter Otten
theguy wrote: > I have a science project that involves designing a program which can > examine a bit of text with the author's name given, then figure out who > the author is if another piece of example text without the name is given. > I so far have three different authors in the program and have

Need Help with Programming Science Project

2014-01-24 Thread theguy
I have a science project that involves designing a program which can examine a bit of text with the author's name given, then figure out who the author is if another piece of example text without the name is given. I so far have three different authors in the program and have already put in the

Re: Python declarative

2014-01-24 Thread Rustom Mody
On Friday, January 24, 2014 2:51:12 PM UTC+5:30, Frank Millman wrote: > Incidentally, I would take issue with the comment that 'JSON is easily > readable by humans (UNLIKE XML)'. Here is a more complete example of my > 'choices' definition. > [true, true, [["admin", "System administrator", [],

Single Object Detection and Tracking Steps

2014-01-24 Thread hottrack88
I am doing single object detection and tracking in a video file using python & opencv2. As far I know the steps are, Video to frame conversion Grayscale conversion Thresholding After phase 3, I got sequence of binary images. My questions are: How to identify (detect) whether the object is movin

Re: The potential for a Python 2.8.

2014-01-24 Thread wxjmfauth
Le vendredi 24 janvier 2014 01:42:41 UTC+1, Terry Reedy a écrit : > > > > This will never happen. Python 3 is the escape from several dead-ends in > > Python 2. The biggest in impact is the use of un-accented latin chars as > > text in a global, unicode world. > > > Three days of discuss

Re: Python declarative

2014-01-24 Thread Frank Millman
"Chris Angelico" wrote in message news:CAPTjJmokZUHta7Y3x_=6eujkpv2td2iaqro1su7nulo+gfz...@mail.gmail.com... > On Thu, Jan 23, 2014 at 8:16 AM, Asaf Las wrote: >> i am novice in python, but let me suggest you something: >> it would be beneficial to use json text file to specify >> your gui so c

Re: generate De Bruijn sequence memory and string vs lists

2014-01-24 Thread Gregory Ewing
Vincent Davis wrote: I plan to use the sequence as an index to count occurrences of sequences of length n. If all you want is a mapping between a sequence of length n and compact representation of it, there's a much simpler way: just convert it to a base-k integer, where k is the size of the al

Re: generate De Bruijn sequence memory and string vs lists

2014-01-24 Thread Peter Otten
Vincent Davis wrote: > Excellent Peter! > I have a question, the times reported don't make sense to me, for example > $ python3 -m timeit -s 'from debruijn_compat import debruijn_bytes as d' > 'd(4, 8)' > 100 loops, best of 3: 10.2 msec per loop > This took ~4 secs (stop watch) which is much more

Re: SIngleton from __defaults__

2014-01-24 Thread Johannes Schneider
thnx guys. On 24.01.2014 01:10, Terry Reedy wrote: Johannes Schneider Wrote in message: On 22.01.2014 20:18, Ned Batchelder wrote: On 1/22/14 11:37 AM, Asaf Las wrote: Chris is right here, too: modules are themselves singletons, no matter how many times you import them, they are only exec

Re: Can post a code but afraid of plagiarism

2014-01-24 Thread Steven D'Aprano
On Thu, 23 Jan 2014 19:15:51 -0800, indar kumar wrote: > What if I want to search for a particular value inside the lists of all > keys except one that user inputs and also want to print that value. Then go right ahead and do so. You are learning Python, so this should be covered in your course.