Is it possible to have a default dictionary where the default is dependant
on the key?
I was hoping something like this might work:
>>> m = defaultdict(lambda key: key+1)
But it obviously doesn't:
>>> m[3]
Traceback (most recent call last):
File "", line 1, in
TypeError: () takes exactly 1 ar
On Mon, Nov 3, 2014 at 10:04 PM, Antoon Pardon
wrote:
> Is it possible to have a default dictionary where the default is dependant
> on the key?
>
> I was hoping something like this might work:
m = defaultdict(lambda key: key+1)
>
> But it obviously doesn't:
m[3]
>
> Traceback (most rece
- Original Message -
> From: "Gregory Ewing"
> Steven D'Aprano wrote:
> > Like all good Pythonistas[1], we hate Java and think that
> > getter/setter
> > methods are pointless. But come on, they're not *wrong*,
>
> What's wrong is the statement that getters and setters
> are necessary to
In the boost::python library there is a function
>>> boost::python::long_
and this function return a boost::python::object variable
I'm trying to wrap a double variale but I can't find
something just like
>> boost::python::double_
can someone help me to build a double object
PS.
I know the
On Mon, Nov 3, 2014 at 7:53 AM, Joseph Shen wrote:
> In the boost::python library there is a function
>
> >>> boost::python::long_
>
> and this function return a boost::python::object variable
>
> I'm trying to wrap a double variable but I can't find
> something just like
>
> >> boost::python::d
On Monday, November 3, 2014 10:11:01 PM UTC+8, Skip Montanaro wrote:
> On Mon, Nov 3, 2014 at 7:53 AM, Joseph Shen wrote:
>
> In the boost::python library there is a function
>
>
>
> >>> boost::python::long_
>
>
>
> and this function return a boost::python::object variable
>
>
>
> I'm tr
On Nov 2, 2014 5:31 AM, "Denis McMahon" wrote:
> And perhaps that also addresses the square - rectangle (or circle -
> ellipse) issue - square, rectangle and rhombus are all forms of
> quadrilateral, and perhaps should all inherit a base class Quadrilateral,
> rather than trying (and partially fai
On 03/11/2014 13:53, Joseph Shen wrote:
In the boost::python library there is a function
boost::python::long_
and this function return a boost::python::object variable
I'm trying to wrap a double variale but I can't find
something just like
boost::python::double_
can someone help me to
On Tue, Nov 4, 2014 at 12:50 AM, Dennis Lee Bieber
wrote:
> On Mon, 3 Nov 2014 03:12:32 + (UTC), Denis McMahon
> declaimed the following:
>
>>So:
>>
>>Quadrilateral
>>Parallelogram
>>Square
>>Rectangle
>>Rhombus
>>Diamond (4 sides eq)
>>Trapezoid
>>
I input 'pip install html5lib' to the Python 2.7 console and got :
>>> pip install html5lib
File "", line 1
pip install html5lib
^
SyntaxError: invalid syntax
>>>
I am not sure what you mean about 'single line paragraphs'. I put my text
into double line spacing in my last mi
On Tue, Nov 4, 2014 at 3:27 AM, Simon Evans wrote:
> I input 'pip install html5lib' to the Python 2.7 console and got :
>
pip install html5lib
> File "", line 1
> pip install html5lib
> ^
> SyntaxError: invalid syntax
This should be run from your command interpreter
json_split = {}
value = {"Status": "Submitted", "m_Controller": "Python"}
a = range(31)
del a[0]
for i in a:
json_split[i] = value
keys = json_split.keys()
order = list(keys)
q1 = int(round(len(keys)*0.2))
q2 = int(round(len(keys)*0.3))
q3 = int(round(len(keys)*0.5))
b = [q1,q2,q3]
n=0
threedic
I input to the cmd console 'pip install html5lib' but again got an error
return. I thought one of the participants was unhappy about single line spacing
(re: single line paragraphs') Okay I will go back to single line spacing, I
don't think it is all that important, really.
Anyway this is my co
On 03/11/2014 21:28, Simon Evans wrote:
I input to the cmd console 'pip install html5lib' but again got an error
return. I thought one of the participants was unhappy about single line spacing
(re: single line paragraphs') Okay I will go back to single line spacing, I
don't think it is all th
Jean-Michel Pichavant wrote:
I agree with Steven on that one, while getters/setters are not the preferred
way, they are not utterly wrong.
I'm not saying that they're wrong in general, only that
they're wrong for *Python*.
This matters, because the course in question is purportedly
teaching P
In article ,
Ned Batchelder wrote:
>On 10/22/14 5:27 AM, ast wrote:
>>
>> "Chris Angelico" a écrit dans le message de
>> news:mailman.15058.1413968065.18130.python-l...@python.org...
>>> On Wed, Oct 22, 2014 at 7:27 PM, ast wrote:
If i am writing (-1)**1000 on a python program, will the
>
On Mon, 03 Nov 2014 06:29:39 +, Dan Sommers wrote:
> On Mon, 03 Nov 2014 03:12:32 +, Denis McMahon wrote:
>
>> Quadrilateral
>> Parallelogram
>> Square Rectangle Rhombus Diamond (4 sides eq)
>> Trapezoid
>> Arrowhead
>
> What's the difference between a Diamond and
Denis McMahon wrote:
On Mon, 03 Nov 2014 06:29:39 +, Dan Sommers wrote:
What's the difference between a Diamond and a Rhombus?
Oops, I was thinking a rhombus was a general parallelogram, my mistake.
Some diamonds are neither rhombuses nor parallelograms:
http://minecraft.gamepedia.co
Jean-Michel Pichavant wrote:
Python uses the descriptor protocol which is
basically getters and setters. It's is just hidden by a strange decorator
syntax.
This is about the interface, not the implementation.
"Getters and setters" in this context means designing
the API of your class to have th
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