Re: [Tutor] constructing semi-arbitrary functions

Hi Oscar, On Feb 17, 2014, at 7:03 PM, Oscar Benjamin wrote: > On 17 February 2014 22:15, "André Walker-Loud " > wrote: >>> This particular case is easily solved: >>> >>> def f_lambda(x,pars): >>>return lambda x: poly(x,*pars) >>> >>> You let the closure take care of pars and return a fu

Re: [Tutor] constructing semi-arbitrary functions

Hi Oscar, On Feb 17, 2014, at 6:02 PM, Oscar Benjamin wrote: > On 17 February 2014 22:15, "André Walker-Loud " > wrote: >>> This particular case is easily solved: >>> >>> def f_lambda(x,pars): >>>return lambda x: poly(x,*pars) >>> >>> You let the closure take care of pars and return a fun

Re: [Tutor] constructing semi-arbitrary functions

On 17 February 2014 22:15, "André Walker-Loud " wrote: >> This particular case is easily solved: >> >> def f_lambda(x,pars): >> return lambda x: poly(x,*pars) >> >> You let the closure take care of pars and return a function that takes >> exactly one argument x. > > Hi Oscar, > > This is the o

Re: [Tutor] constructing semi-arbitrary functions

On 17 February 2014 22:15, "André Walker-Loud " wrote: >> This particular case is easily solved: >> >> def f_lambda(x,pars): >> return lambda x: poly(x,*pars) >> >> You let the closure take care of pars and return a function that takes >> exactly one argument x. > > Hi Oscar, > > This is the o

Re: [Tutor] constructing semi-arbitrary functions

> This particular case is easily solved: > > def f_lambda(x,pars): > return lambda x: poly(x,*pars) > > You let the closure take care of pars and return a function that takes > exactly one argument x. Hi Oscar, This is the opposite of what I am trying to do. In the example, x represents t

Re: [Tutor] constructing semi-arbitrary functions

On 17 February 2014 21:18, "André Walker-Loud " wrote: > > What I am trying to avoid is having to write a special case for each order of > polynomial I want. I tried the following > > def poly(x,pars): > val = 0. > for i,ci in enumerate(pars): > val += x**i * ci > return val

[Tutor] Assignment, references, binding (was: is an alias a variable)

Ian D writes: > is > import longModuleName as lmn > > or > > lmn = longModuleName > > creating an alias or assigning to a variable. or both? Assignment and import both bind a name to an object. NAmes are one (common) kind of reference. The only way to get at objects is by using a re

Re: [Tutor] constructing semi-arbitrary functions

Peter Otten <__pete...@web.de> Wrote in message: > André Walker-Loud wrote: > >> Hello python tutors, >> >> I am utilizing a 3rd party numerical minimization routine. This routine >> requires an input function, which takes as arguments, only the variables >> with which to solve for. But I do

Re: [Tutor] constructing semi-arbitrary functions

On Mon, Feb 17, 2014 at 07:58:00PM +, Oscar Benjamin wrote: > The "right" solution is to change the interface of the third party > function. It is poorly designed and should not be inspecting those function > attributes or it should at least provide an option for you to provide that > informat

Re: [Tutor] constructing semi-arbitrary functions

Hi Oscar, Let me clear up my description of one point - I don’t want to pick on the third party software guys. > The "right" solution is to change the interface of the third party function. > It is poorly designed and should not be inspecting those function attributes > or it should at least p

Re: [Tutor] constructing semi-arbitrary functions

On 17 February 2014 20:13, Peter Otten <__pete...@web.de> wrote: > André Walker-Loud wrote: >> >> The 3rd party minimizer utilizes the .func_code.co_varnames and >> .func_code.co_argcount to determine the name and number of variables to >> minimize. eg. >> >> = >> METHOD 2: use strings, e

Re: [Tutor] when is "pythondontwritebytecode" useful?

Albert-Jan Roskam writes: > I know what it does > (http://docs.python.org/2/using/cmdline.html#envvar-PYTHONDONTWRITEBYTECODE), > i.e. no pyc or pyo fiules are written, but WHY is that sometimes a > good thing? There are numerous reasons why one might not want files to suddenly be written when a

Re: [Tutor] constructing semi-arbitrary functions

André Walker-Loud wrote: > Hello python tutors, > > I am utilizing a 3rd party numerical minimization routine. This routine > requires an input function, which takes as arguments, only the variables > with which to solve for. But I don’t want to define all possible input > functions, in a gian

Re: [Tutor] constructing semi-arbitrary functions

On Feb 17, 2014 7:24 PM, ""André Walker-Loud "" wrote: > > Question 1: > Is there a better way to accomplish (my hopefully clear) goals? I'm not sure that there is given the constraints you're under from the third party function. > Question 2: > In method 1, is there a way t

[Tutor] constructing semi-arbitrary functions

Hello python tutors, I am utilizing a 3rd party numerical minimization routine. This routine requires an input function, which takes as arguments, only the variables with which to solve for. But I don’t want to define all possible input functions, in a giant switch, but rather, if I know I am

Re: [Tutor] for: how to skip items

Gabriele Brambilla Wrote in message: > in the end I'm using something like this and it works: > zipPARApha = zip(Pampli, Pgamma, Pecut, Pb, g) > for n, (a1,b1,c1,d1,pha) in enumerate(zipPARApha): > where the arguments of zip are lists of the same size. Simpler would be: for a1,b1,c1,d1,pha

Re: [Tutor] Performing an union of two files containing keywords

Oscar Benjamin Wrote in message: > On 17 February 2014 13:16, Dave Angel wrote: >> On 02/17/2014 06:12 AM, Oscar Benjamin wrote: >>> >>> Something like this: >>> >>> with open(r'D:\file3.txt', 'r+') as fout: >>> keywords_seen = set() >>> for filename in r'C:\File1.txt', r'C:\File2.txt'

Re: [Tutor] Regarding Exceptions

On 02/17/2014 06:44 AM, Khalid Al-Ghamdi wrote: Hi, Why is it i can use mu custom class exception without creating an exception object first? Thanks 1. class ShortInputException(Exception): def __init__(self, length, atleast): 2. Exception.__init__(self) 3. se

Re: [Tutor] for: how to skip items

Gabriele Brambilla wrote: >it's because my problem is not so simple: >imagine that in a100 contains not integer sorted in a good way but a >random float numbers. >How could I display only one item every 10? You can provide a step size if you slice a list: >>> l = list(range(10)) >>> l[0:10:2] [0

[Tutor] Fwd: for: how to skip items

0, 9, 19, 29, 39, is not every 10th index If you want to output every 10th. index try: a100 = list(range(0,100,10)) for a in a100: print(a) -Original Message- From: Gabriele Brambilla To: python tutor Sent: Mon, 17 Feb 2014 16:06 Subject: [Tutor] for: how to ski

Re: [Tutor] for: how to skip items

On 02/17/2014 08:05 AM, Gabriele Brambilla wrote: Hi, I'm wondering how I can (if I can) make a for loop in which I don't use all the elements. for example a100 = list(range(100)) for a in a100: print(a) it print out to me all the numbers from 0 to 99 But if I want to display o

Re: [Tutor] for: how to skip items

On 17/02/2014 16:17, Gabriele Brambilla wrote: Doesn't exist a way in Python to do like in C for i=0, i<100, i=i+10 ? without creating a list of index? Gabriele 2014-02-17 11:15 GMT-05:00 David Palao mailto:dpalao.pyt...@gmail.com>>: Hi Gabriele, Without knowing the details of what

Re: [Tutor] for: how to skip items

thanks, in the end I'm using something like this and it works: zipPARApha = zip(Pampli, Pgamma, Pecut, Pb, g) for n, (a1,b1,c1,d1,pha) in enumerate(zipPARApha): where the arguments of zip are lists of the same size. Gabriele 2014-02-17 11:19 GMT-05:00 Oscar Benjamin : > On 17 February 2014 1

Re: [Tutor] for: how to skip items

On 17 February 2014 16:17, Gabriele Brambilla wrote: > Doesn't exist a way in Python to do like in C > > for i=0, i<100, i=i+10 > > ? without creating a list of index? You haven't said which Python version you're using. In Python 2 the range function returns a list but the xrange function returns

Re: [Tutor] for: how to skip items

No sorry, it's because my problem is not so simple: imagine that in a100 contains not integer sorted in a good way but a random float numbers. How could I display only one item every 10? thanks Gabriele 2014-02-17 11:08 GMT-05:00 Oscar Benjamin : > On 17 February 2014 16:05, Gabriele Brambill

Re: [Tutor] for: how to skip items

On 17 February 2014 16:13, Gabriele Brambilla wrote: > No sorry, > > it's because my problem is not so simple: > imagine that in a100 contains not integer sorted in a good way but a random > float numbers. > How could I display only one item every 10? for n, a in enumerate(a100): if n % 10 ==

Re: [Tutor] for: how to skip items

Doesn't exist a way in Python to do like in C for i=0, i<100, i=i+10 ? without creating a list of index? Gabriele 2014-02-17 11:15 GMT-05:00 David Palao : > Hi Gabriele, > Without knowing the details of what you are trying, I guess you could > be interested in looking at how to define your ow

Re: [Tutor] for: how to skip items

Hi Gabriele, Without knowing the details of what you are trying, I guess you could be interested in looking at how to define your own iterators. Regards 2014-02-17 17:05 GMT+01:00 Gabriele Brambilla : > Hi, > > I'm wondering how I can (if I can) make a for loop in which I don't use all > the elem

Re: [Tutor] for: how to skip items

Excuse me for the bad english: not "a random float numbers" but "random float numbers" Gabriele 2014-02-17 11:13 GMT-05:00 Gabriele Brambilla < gb.gabrielebrambi...@gmail.com>: > No sorry, > > it's because my problem is not so simple: > imagine that in a100 contains not integer sorted in a good

Re: [Tutor] for: how to skip items

On Feb 17, 2014 11:06 AM, "Gabriele Brambilla" < gb.gabrielebrambi...@gmail.com> wrote: > > Hi, > > I'm wondering how I can (if I can) make a for loop in which I don't use all the elements. > > for example > > a100 = list(range(100)) > > for a in a100: > print(a) > > it print out to me

Re: [Tutor] for: how to skip items

On 17 February 2014 16:05, Gabriele Brambilla wrote: > Hi, > > I'm wondering how I can (if I can) make a for loop in which I don't use all > the elements. > > for example > > a100 = list(range(100)) > > for a in a100: > print(a) > > it print out to me all the numbers from 0 to 99 > Bu

Re: [Tutor] Performing an union of two files containing keywords

On 17 February 2014 13:16, Dave Angel wrote: > On 02/17/2014 06:12 AM, Oscar Benjamin wrote: >> >> Something like this: >> >> with open(r'D:\file3.txt', 'r+') as fout: >> keywords_seen = set() >> for filename in r'C:\File1.txt', r'C:\File2.txt': >> with open(filename) as fin: >>

[Tutor] for: how to skip items

Hi, I'm wondering how I can (if I can) make a for loop in which I don't use all the elements. for example a100 = list(range(100)) for a in a100: print(a) it print out to me all the numbers from 0 to 99 But if I want to display only the numbers 0, 9, 19, 29, 39, ...(one every 10 el

Re: [Tutor] Upload a file using python

On 17/02/2014 15:38, Alan Gauld wrote: In that case you should be able to call the Ajax API directly using urllib or cgi possibly some higher level Ajax module - I suspect one will exist somewhere! First port of call for such things https://pypi.python.org/pypi -- My fellow Pythonistas, ask

Re: [Tutor] Upload a file using python

On 17/02/14 14:29, rakesh sharma wrote: Greetings!! Hi Alan, The error code was that of success. 200. Donno if the site supports a post method. It doesn't but is there any other way of automating the process. The issue of chrome 32 with selenium webdriver has stalled the show for me. Hence i ha

Re: [Tutor] Beginner - Clarifying 'understanding randint arguments'

On 17/02/14 11:39, Marc Eymard wrote: Hi Tutor, The previous elements I sent to the mailing list were incomplete and needs no answer from Tutor. But you got several nonetheless. Did you read them? If so you will know that calling randint() does not change the two xxx_range variables. It simp

Re: [Tutor] Regarding Exceptions

On 17/02/14 11:44, Khalid Al-Ghamdi wrote: Why is it i can use mu custom class exception without creating an exception object first? There are formatting problems when I try to copy your code. I've tried to fix them below, apologies if I got it wrong. However you do create an instance when you

Re: [Tutor] Upload a file using python

Greetings!! Hi Alan, The error code was that of success. 200.Donno if the site supports a post method. It doesn't but is there any other way of automating the process.The issue of chrome 32 with selenium webdriver has stalled the show for me. Hence i had to fend for some other ways. thanks,rakes

Re: [Tutor] Regarding Exceptions

On Mon, Feb 17, 2014 at 12:44 PM, Khalid Al-Ghamdi wrote: > Hi, > > Why is it i can use mu custom class exception without creating an exception > object first? > > Thanks > > class ShortInputException(Exception): def __init__(self, length, atleast): > Exception.__init__(self) > sel

[Tutor] Beginner - Clarifying 'understanding randint arguments'

Hi Tutor, The previous elements I sent to the mailing list were incomplete and needs no answer from Tutor. To clarify and re-phrase my script issue: I want to code a game whereby the computer guesses either by luck or deduction a number I pick within [0, 100]. In attached machine_guess_number

[Tutor] Regarding Exceptions

Hi, Why is it i can use mu custom class exception without creating an exception object first? Thanks 1. class ShortInputException(Exception): def __init__(self, length, atleast): 2. Exception.__init__(self) 3. self.length = length 4. self.atleast = atleas

Re: [Tutor] Performing an union of two files containing keywords

On 02/17/2014 05:29 AM, spir wrote: On 02/17/2014 10:07 AM, Aaron Misquith wrote: I have 2 different text files. File1.txt contains: file RAMPython parser File2.txt contains: file1234 program I want to perform an union of these both files such that i get an output file3.txt which contains:

[Tutor] Regarding Exceptions

Hi, in the following snippet, why is it I don't need to create an Exception object and I can use the class directly in raise my custom exception? http://pastebin.com/embed_iframe.php?i=7ANcvLHR"; style="border:none;width:100%"> Thanks ___ Tutor maillist

Re: [Tutor] Performing an union of two files containing keywords

Aaron Misquith Wrote in message: > As two others have said, a set is the simplest solution to avoid duplicates. There are other questions to ask, however. Primary is whether order matters. If it does not, then observe that list(set(mylist)) will produce a list from a list without duplicate

Re: [Tutor] Performing an union of two files containing keywords

On 02/17/2014 06:12 AM, Oscar Benjamin wrote: On 17 February 2014 09:07, Aaron Misquith wrote: The program that i'm working on just combines two files. Any help on performing an union such that a keyword would not be repeated would be appreciated. Code: with open("C:\\File1.txt") as fin1: lin

Re: [Tutor] Performing an union of two files containing keywords

On 17/02/14 10:29, spir wrote: I want to perform an union of these both files such that i get an output file3.txt which contains: file RAMPython parser1234 program I don't understand the logic of your "union" (???) at all. Is your example correct? It's an email formatting issue, I saw the s

Re: [Tutor] Performing an union of two files containing keywords

On 17 February 2014 09:07, Aaron Misquith wrote: > > The program that i'm working on just combines two files. Any help on > performing an union such that a keyword would not be repeated would be > appreciated. > > Code: > with open("C:\\File1.txt") as fin1: lines = fin1.readlines() > with open("C:

Re: [Tutor] Performing an union of two files containing keywords

On 02/17/2014 10:07 AM, Aaron Misquith wrote: I have 2 different text files. File1.txt contains: file RAMPython parser File2.txt contains: file1234 program I want to perform an union of these both files such that i get an output file3.txt which contains: file RAMPython parser1234 program

Re: [Tutor] Performing an union of two files containing keywords

Aaron Misquith wrote: > I have 2 different text files. > > File1.txt contains: > > file > RAMPython > parser > > File2.txt contains: > > file1234 > program > > I want to perform an union of these both files such that i get an output > file3.txt which contains: > > file > RAMPython > parser12

Re: [Tutor] Performing an union of two files containing keywords

On 17/02/2014 09:07, Aaron Misquith wrote: I have 2 different text files. File1.txt contains: |file RAM Python parser| File2.txt contains: |file 1234 program| I want to perform an union of these both files such that i get an output file3.txt which contains: |file RAM Python parser 1234 prog

[Tutor] Performing an union of two files containing keywords

I have 2 different text files. File1.txt contains: file RAMPython parser File2.txt contains: file1234 program I want to perform an union of these both files such that i get an output file3.txt which contains: file RAMPython parser1234 program The program that i'm working on just combines t