Rustom Mody :
> There is a real conflict between the logician's goal and the
> educator's. The logician wants to minimize the variety of ideas,
> and doesn't mind a long, thin path. The educator (rightly) wants
> to make the paths short and doesn't mind–in fact,
> prefers–connections to many other
On 01/02/2015 06:45, Frank Millman wrote:
Hi all
I downloaded some bank statements in CSV format with a view to providing an
automated bank reconciliation feature for my accounting software.
One of them shows the opening balance in an unusual format.
Most transaction amounts are in the format
Sorry, sort of responding to both of you.
On Sat, Jan 31, 2015 at 10:12 PM, Paul Rubin wrote:
> Steven D'Aprano writes:
>> Some degree of weakness in a type system is not necessarily bad. Even the
>> strongest of languages usually allow a few exceptions, such as numeric
>> coercions.
>
> Haskell
Hi all
I downloaded some bank statements in CSV format with a view to providing an
automated bank reconciliation feature for my accounting software.
One of them shows the opening balance in an unusual format.
Most transaction amounts are in the format '-0031.23' or '+0024.58'
This can
Marko Rauhamaa writes:
> The guiding principle in C++ language development is to take static
> type safety to the extreme.
Heh, try Ada.
> Stroustrup apparently has never had to deal with callbacks; his thick
> books never made a mention of them last time I checked.
C++ has function pointers
Steven D'Aprano writes:
> Some degree of weakness in a type system is not necessarily bad. Even the
> strongest of languages usually allow a few exceptions, such as numeric
> coercions.
Haskell doesn't have automatic coercions of any sort. You have to call
a conversion function if you want to tu
On Sunday, February 1, 2015 at 10:15:13 AM UTC+5:30, Ethan Furman wrote:
> On 01/31/2015 07:16 PM, Steven D'Aprano wrote:
> >
> > But by default, Python will fallback on __repr__ if __str__ doesn't exist,
> > or __str__ if __repr__ doesn't exist, or both. Or something. (I always
> > forget what th
On 01/31/2015 07:16 PM, Steven D'Aprano wrote:
>
> But by default, Python will fallback on __repr__ if __str__ doesn't exist,
> or __str__ if __repr__ doesn't exist, or both. Or something. (I always
> forget what the rules are exactly.)
If __str__ is missing, __repr__ is called.
If __repr__ is m
On Sun, Feb 1, 2015 at 2:16 PM, Steven D'Aprano
wrote:
> Chris Angelico wrote:
>
>> On Sat, Jan 31, 2015 at 10:56 PM, Steven D'Aprano
>> wrote:
>>> Both ints and floats are models of the same abstract thing, namely
>>> "number". Ideally, from a mathematically standpoint, there should be no
>>> di
On Fri, Jan 30, 2015 at 1:28 PM, Sturla Molden wrote:
> in Python. It actually corresponds to
>
> with Foo() as bar:
>
The problem with with statements is that they only handle the case of
RAII with stack allocated variables, and can't handle transfer of
ownership cleanly.
Consider the case
On Sun, Feb 1, 2015 at 2:06 PM, Mark Lawrence wrote:
> The one-liner might not be better code, but it must be better speed wise
> precisely because it's on one line, right? :)
Well of course it is. Python code speed is always measured in lines
per minute. That's why you should eliminate blank lin
On Sun, Feb 1, 2015 at 2:00 PM, Steven D'Aprano
wrote:
>> A C++ statement with RAII like
>>
>> {
>>Foo bar();
>>// suite
>> }
>>
>> is not equivalent to
>>
>> bar = Foo()
>>
>> in Python. It actually corresponds to
>>
>> with Foo() as bar:
>>
>
>
> Nice answer! I'm not qualified t
Chris Angelico wrote:
> On Sat, Jan 31, 2015 at 10:56 PM, Steven D'Aprano
> wrote:
>> Both ints and floats are models of the same abstract thing, namely
>> "number". Ideally, from a mathematically standpoint, there should be no
>> difference between 23 and 23.0. Automatic coercions allow us to ge
Mario Figueiredo wrote:
> In article <54ca5bbf$0$12992$c3e8da3$54964...@news.astraweb.com>,
> steve+comp.lang.pyt...@pearwood.info says...
>>
>> Why should I feel guilty? You wrote:
>>
>>
>> "Static analysis cannot and should not clutter executable code."
>>
>>
>> But what are type declaratio
On 31/01/2015 02:38, Chris Angelico wrote:
On Sat, Jan 31, 2015 at 1:27 PM, wrote:
l1 = ["a","b","c","d","e","f","g","h","i","j"]
l2 = ["aR","bR","cR"]
l2 will always be smaller or equal to l1
numL1PerL2 = len(l1)/len(l2)
I want to create a dictionary that has key from l1 and value from l2
Sturla Molden wrote:
> Rustom Mody wrote:
>
>> The case of RAII vs gc is hardly conclusive:
>>
>> http://stackoverflow.com/questions/228620/garbage-collection-in-c-why
>
> The purpose of RAII is not to be an alternative to garbage collection
> (which the those answers imply), but to ensure de
> I have two lists
>
> l1 = ["a","b","c","d","e","f","g","h","i","j"]
> l2 = ["aR","bR","cR"]
>
> l2 will always be smaller or equal to l1
>
> numL1PerL2 = len(l1)/len(l2)
>
> I want to create a dictionary that has key from l1 and value from l2 based on
> numL1PerL2
>
> So
>
> {
> a:aR,
> b:aR,
>
On Saturday, January 31, 2015 at 11:13:29 PM UTC+5:30, Marko Rauhamaa wrote:
> Rustom Mody:
>
> > On Saturday, January 31, 2015 at 5:52:58 PM UTC+5:30, Marko Rauhamaa wrote:
> >> Esthetically, I'm most impressed with Scheme. One day it might give
> >> Python a run for its money.
> >
> > Aren't you
Marko Rauhamaa wrote:
> I'm most impressed with Scheme. One day it might give
> Python a run for its money.
Scheme is forty years old, having come out in 1975. Python is 24 years old,
having come out in 1991. If Scheme hasn't caught up with Python by now, it
never will.
--
Steven
--
https:/
LOL!
--
~Ethan~
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https://www.youtube.com/watch?v=kAG39jKi0lI
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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Hi Peter,
Peter Otten <__pete...@web.de> wrote:
[]
> Let's start with the simplest:
>
>> Peter Otten <__pete...@web.de> wrote:
>
>>>def show2(self):
>>>yield str(self)
>>>for child in self.children:
>>>yield from child.show2()
[]
>
> Given a tree
>
> A --> A1
>
On 31/01/2015 15:50, Rustom Mody wrote:
On Saturday, January 31, 2015 at 5:52:58 PM UTC+5:30, Marko Rauhamaa wrote:
Esthetically, I'm most impressed with Scheme. One day it might give
Python a run for its money.
Marko
Aren't you getting this backwards?
http://www.wisdomandwonder.com/link/21
Rustom Mody :
> On Saturday, January 31, 2015 at 5:52:58 PM UTC+5:30, Marko Rauhamaa wrote:
>> Esthetically, I'm most impressed with Scheme. One day it might give
>> Python a run for its money.
>
> Aren't you getting this backwards?
Deep down I'm a minimalist romantic.
> Its just that its 2015 n
On Saturday, January 31, 2015 at 4:34:14 PM UTC+5:30, Steven D'Aprano wrote:
>
> Yesterday, as I wrote that message, my web browser crashed *eight times* in
> a matter of half an hour. There are thousands of serious security
> vulnerabilities due to mishandled pointers. Anyone who thinks that Linu
On Saturday, January 31, 2015 at 5:52:58 PM UTC+5:30, Marko Rauhamaa wrote:
> Esthetically, I'm most impressed with Scheme. One day it might give
> Python a run for its money.
>
>
> Marko
Aren't you getting this backwards?
http://www.wisdomandwonder.com/link/2110/why-mit-switched-from-scheme-to
On Sat, Jan 31, 2015 at 10:56 PM, Steven D'Aprano
wrote:
> Both ints and floats are models of the same abstract thing, namely "number".
> Ideally, from a mathematically standpoint, there should be no difference
> between 23 and 23.0. Automatic coercions allow us to get a little closer to
> that id
Hi Tom,
Tom Kent gmail.com> writes:
>
> I'm getting an error output when I call the C-API's Py_Finalize() from a
different C-thread than I made a
> python call on.
Can you please post a bug on https://bugs.python.org ?
Be sure to upload your example there.
Thank you
Antoine.
--
https://ma
Terry Reedy :
> On 1/30/2015 10:46 AM, Ian Kelly wrote:
>> Is there someone I can contact to have my password manually reset?
>
> Answered offline.
Spoilsport.
Marko
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https://mail.python.org/mailman/listinfo/python-list
Gregory Ewing :
> I'm completely convinced nowadays that there is *no* use case for C++.
While I wouldn't go quite that far (my most recent creation was written
in C++; why? because the legacy support libraries were written in C++).
However, C++ is like putting lipstick on a pig. In fact, C++ ha
random...@fastmail.us wrote:
> On Thu, Jan 29, 2015, at 10:56, Steven D'Aprano wrote:
>> Bar language, on the other hand, tries extremely hard to ensure that
>> every
>> type is automatically able to be coerced into every other type. The
>> coercion might not do what you expect, but it will do *so
Michael Torrie wrote:
> On 01/30/2015 04:50 PM, Steven D'Aprano wrote:
>> Oh great. So if the average application creates a hundred thousand
>> pointers of the course of a session, you'll only have a thousand or so
>> seg faults and leaks.
>>
>> Well, that certainly explains this:
>>
>> https://
On 1/31/2015 4:13 AM, Steven D'Aprano wrote:
Jacob Kruger wrote:
Using python 3.4 32 bit on windows 7 64 bit machine, and when, for
example, type in something like the following in interpreter window:
help(str)
It will populate the screen with one full screen of information, with a
prompt of -
- Original Message - > Specifically, the last two lines show:
Display next page
Display next line
which is, I suspect, what you're after here.
(If you're interested, the code for all this is in the pydoc module
(Lib\pydoc.py) in the getpager() function.
TJG
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https://mail.pytho
- Original Message -
From: "Steven D'Aprano"
Newsgroups: comp.lang.python
To:
Sent: Saturday, January 31, 2015 11:13 AM
Subject: Re: help() function screen output
Jacob Kruger wrote:
Using python 3.4 32 bit on windows 7 64 bit machine, and when, for
example, type in something like
On 31/01/2015 08:17, Jacob Kruger wrote:
Using python 3.4 32 bit on windows 7 64 bit machine, and when, for
example, type in something like the following in interpreter window:
help(str)
It will populate the screen with one full screen of information, with a
prompt of --more-- to hit enter, or so
On Saturday, January 31, 2015 at 11:11:02 AM UTC+2, Chris Angelico wrote:
> On Sat, Jan 31, 2015 at 7:51 PM, wrote:
> > Hello. I am looking for a python coder. Please find the details which are
> > in the below:
> >
> > A bittorrent client will be coded in order to share files in a private
> >
Jacob Kruger wrote:
> Using python 3.4 32 bit on windows 7 64 bit machine, and when, for
> example, type in something like the following in interpreter window:
> help(str)
>
> It will populate the screen with one full screen of information, with a
> prompt of --more-- to hit enter, or something t
alb wrote:
> >
> > def read_tree(rows, levelnames):
> >root = Node("#ROOT", "#ROOT")
> >old_level = 0
> >stack = [root]
> >for i, row in enumerate(rows, 1):
>
> I'm not quite sure I understand what is the stack for. As of now is a
> list whose only element is root.
The stack is
On Sat, Jan 31, 2015 at 7:51 PM, wrote:
> Hello. I am looking for a python coder. Please find the details which are in
> the below:
>
> A bittorrent client will be coded in order to share files in a private group.
> The private tracker server was coded by me (PHP & MySQL) and bittorrent
> clie
alb wrote:
> >
> > def read_tree(rows, levelnames):
> >root = Node("#ROOT", "#ROOT")
> >old_level = 0
> >stack = [root]
> >for i, row in enumerate(rows, 1):
>
> I'm not quite sure I understand what is the stack for. As of now is a
> list whose only element is root.
The stack is
Hello. I am looking for a python coder. Please find the details which are in
the below:
A bittorrent client will be coded in order to share files in a private group.
The private tracker server was coded by me (PHP & MySQL) and bittorrent client
will be communicated with this tracker server via
Am 30.01.15 um 19:23 schrieb Paul Rubin:
> Michael Torrie writes:
>> Follow basic [C++] rules and 99% of segfaults will never happen and
>> the majority of leaks will not happen either.
>
> That is a safe and simple approach, but it works by copying data all
> over the place instead of passing po
Using python 3.4 32 bit on windows 7 64 bit machine, and when, for example,
type in something like the following in interpreter window:
help(str)
It will populate the screen with one full screen of information, with a prompt
of --more-- to hit enter, or something to continue displaying informati
On 1/30/2015 10:46 AM, Ian Kelly wrote:
I just tried to use the password recovery tool for the Python tracker.
I entered my personal email. It sent me the confirmation email with
the password reset link, which I followed. It then reset my password
and sent an email to a different address, an old
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