Re: Fwd: Re: Comparing Dictionaries

On Mon, 30 Jul 2007 14:06:29 -0500, Kenneth Love wrote: > >>From: "Steven D'Aprano" <[EMAIL PROTECTED]> >>Newsgroups: comp.lang.python >>Subject: Re: Comparing Dictionaries >>Date: Sat, 28 Jul 2007 10:21:14 +1000 >>To: python-list@python.org >> >>On Fri, 27 Jul 2007 14:11:02 -0500, Kenneth Love w

Re: What is the "functional" way of doing this?

On Jul 30, 4:39 pm, Paul Rubin wrote: > "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> writes: > > Recursion is common in functional programming: > > > def f(n, l=None): > > if l == None: > > l = [] > > if n > 0: > > return f(n/26, l + [n%26]) > > els

Re: Help text embedding in C code?

On Mon, 2007-07-30 at 16:24 -0700, James Stroud wrote: > Hello All, > > I have a python module I wrote in C some time ago and I have since > forgotten how to use my functions and so I wanted to add some > doc-strings such that "help(function_name)" would give some help in the > interactive inte

Re: Help text embedding in C code?

Carsten Haese wrote: > On Mon, 2007-07-30 at 16:24 -0700, James Stroud wrote: > >>Hello All, >> >>I have a python module I wrote in C some time ago and I have since >>forgotten how to use my functions and so I wanted to add some >>doc-strings such that "help(function_name)" would give some help

Re: OOP in Python book?

James Stroud wrote: > Dick Moores wrote: >> At 01:27 PM 7/28/2007, Dennis Lee Bieber wrote: >> >>> On Fri, 27 Jul 2007 16:27:57 -0700, Dick Moores <[EMAIL PROTECTED]> >>> declaimed the following in comp.lang.python: >>> >>> Well, the publisher is Prentice Hall, "The world's leading educat

Pysqlite storing file as blob example

I'm trying to store binary data in a sqlite database and call into the db using pysqlite 3. What I've got so far is this: import sqlite con = sqlite.connect(DB_PATH) cur = con.cursor() query = """create table t1( ID INTEGER PRIMARY KEY, dataBLOB );""" cur.execute(query)

Re: TypeError: unsupported operand type(s) for -: 'Decimal' and 'Decimal'. Why?

On Jul 31, 9:31 am, Zentrader <[EMAIL PROTECTED]> wrote: > > from decimal import Decimal > > > In [21]: a = Decimal() > > > In [22]: class Decimal(object): > >: pass > >: > > > In [23]: b = Decimal() > > > In [24]: a - b > > Perhaps I don't understand what you are doing here, bu

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Re: yield keyword usage

Ehsan wrote: > hi > coulde any one show me the usage of "yield" keyword specially in this > example: > > > """Fibonacci sequences using generators > > This program is part of "Dive Into Python", a free Python book for > experienced programmers. Visit http://diveintopython.org/ for the > latest

Re: What is the "functional" way of doing this?

> On Jul 30, 4:39 pm, Paul Rubin wrote: >> "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> writes: >>> Recursion is common in functional programming: >>> def f(n, l=None): >>> if l == None: >>> l = [] >>> if n > 0: >>> return f(n/26, l + [n%26]) >>> el

Re: Pysqlite storing file as blob example

On Tue, 2007-07-31 at 00:25 +, [EMAIL PROTECTED] wrote: > I'm trying to store binary data in a sqlite database and call into the > db using pysqlite 3. > What I've got so far is this: > > import sqlite > con = sqlite.connect(DB_PATH) > cur = con.cursor()mean > query = """create table t1( >

Re: What is the "functional" way of doing this?

beginner wrote: > Hi, > > If I have a number n and want to generate a list based on like the > following: > > def f(n): > l=[] > while n>0: > l.append(n%26) > n /=26 > return l > > I am wondering what is the 'functional' way to do the same. > > Thanks, > beginner

Re: What is the "functional" way of doing this?

James Stroud wrote: > py> f = lambda n, r=None: f(n/26, (r if r else [])) + [n%26] if n/26 > else [n%26] > py> f(30) > [17, 1, 20, 12] > py> f(3) > [1, 18, 9, 22] > py> f(3000) > [4, 11, 10] > py> f(1000) > [1, 12, 12] > > Oops, those are backwards. Should be: f = lambda n, r=None: [n

Re: Relative-importing *

Steven D'Aprano a écrit : (snip) > I do take your point that importing * has the potential to unexpectedly > clobber names you didn't intend, Another problem is that it makes harder to know from which module a name comes from. > and that's a good reason to avoid it > unless you have a good reaso

Re: Relative-importing *

Paul Rubin a écrit : > Steven D'Aprano <[EMAIL PROTECTED]> writes: > >>I read "from module import *" as explicitly saying "clobber the current >>namespace with whatever names module exports". That's what from does: it >>imports names into the current namespace. It isn't some sort of easy to >>miss

Re: Where do they tech Python officialy ?

Omari Norman a écrit : > On Mon, Jul 23, 2007 at 10:48:10PM -0700, Paul Rubin wrote: > > >>If you're having trouble with Python because you're new at >>programming, I can sympathize--I don't think it's the most >>beginner-friendly of languages despite the efforts in that direction >>by the desig

Re: making a variable available in a function from decorator

Evan Klitzke a écrit : > On 7/30/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > >>is it possible to do this without passing it as a function argument? >> > Sort of. Functions are objects in python, so you can set attribute on them. > E.g. > > def foo(): > return foo.c > > foo.c = 1 > pr

Re: What is the "functional" way of doing this?

Ricardo Aráoz wrote: >>On Jul 30, 4:39 pm, Paul Rubin wrote: >> >>>"[EMAIL PROTECTED]" <[EMAIL PROTECTED]> writes: >>> Recursion is common in functional programming: def f(n, l=None): if l == None: l = [] if n > 0: return f(

Re: What is the "functional" way of doing this?

James Stroud <[EMAIL PROTECTED]> writes: > def f(n): >if n>0: > yield n%26 > for i in f(n/26): >yield i Right, this mutates i though. Let's say we have a library function itertools.iterate() and that we ignore (as we do with functions like "map") that it uses mutation under

Re: Why no maintained wrapper to Win32?

On Sun, 29 Jul 2007 21:49:04 -0700, sturlamolden <[EMAIL PROTECTED]> wrote: >Why inflict suffering on yourself with MFC when you can use wxPython >or PyGTK? Because I'd like to avoid having to pack several MB + having to install the toolkit. Considering the size of the typical Python script, it se

Where can I get a complete user interface about pylibpcap?

A web-link would do, becuase of I don't know how many parameters I need to use in function about pylibpcap. Or what kind of parameters I need to use/transfer? I'm very gratefully if you can help on this question. Thanks, -- http://mail.python.org/mailman/listinfo/python-list

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Re: From D

Gabriel Genellina wrote: > En Tue, 24 Jul 2007 11:10:53 -0300, Stargaming <[EMAIL PROTECTED]> > escribió: > >> On Tue, 24 Jul 2007 03:19:53 -0700, bearophileHUGS wrote: >> >>> There are various things I like about the D language that I think Python >>> too may enjoy. Here are few bits (mostly sy

[2.5] Reading a two-column file into an array?

Hello I'm sure there's a much easier way to read a two-column, CSV file into an array, but I haven't found it in Google. Should I use the Array module instead? = a = [] i = 0 #itemitem p = re.compile("^(.+)\t(.+)$") for line in textlines: m = p.search(line) if m:

Re: [2.5] Reading a two-column file into an array?

Gilles Ganault wrote: > I'm sure there's a much easier way to read a two-column, CSV file into > an array, but I haven't found it in Google. > > Should I use the Array module instead? The csv module? Or just .rstrip and .split? -- Erik Max Francis && [EMAIL PROTECTED] && http://www.alcyone.co

Re: Reading a two-column file into an array?

On Jul 31, 9:03 am, Gilles Ganault <[EMAIL PROTECTED]> wrote: > Hello > > I'm sure there's a much easier way to read a two-column, CSV file into > an array, but I haven't found it in Google. > > Should I use the Array module instead? > > = > a = [] > i = 0 > > #itemitem > p = re.compile("^(

Re: Where do they tech Python officialy ?

MIT's freshman survey, EECS 1 is taught in Python and Scheme, soon to be just Python. -Star On Wed, 25 Jul 2007, Bruno Desthuilliers wrote: Omari Norman a écrit : On Mon, Jul 23, 2007 at 10:48:10PM -0700, Paul Rubin wrote: If you're having trouble with Python because you're new at program

Re: Reading a two-column file into an array?

Nagarajan wrote: > On Jul 31, 9:03 am, Gilles Ganault <[EMAIL PROTECTED]> wrote: >> Hello >> >> I'm sure there's a much easier way to read a two-column, CSV file into >> an array, but I haven't found it in Google. >> >> Should I use the Array module instead? [...snip] > a = [] > import csv > read

Re: Why no maintained wrapper to Win32?

> Guess I have the answer as to no one seems to write GUI apps for > Windows natively :-) That's certainly an important factor. If I wanted to ship a small application, I would write a web server, and run that locally. GUI programming is so last-century :-) Regards, Martin -- http://mail.python.

Re: Reading a two-column file into an array?

On Mon, 30 Jul 2007 21:57:17 -0700, Nagarajan wrote: > a = [] > import csv > reader = csv.reader(open("filename", "r"), delimiter='\t' ) > for row in reader: > a.append( row ) I would keep a reference to the file to close it properly and the loop can be replaced by a call to `list()`: import

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