Hi Chidinma,
I'm afraid it is very difficult for me to understand your code, because
your email program (Yahoo mail perhaps?) has mangled the code and put it
all on one single line:
On Sat, Sep 03, 2016 at 09:45:17PM +, Chidinma via Tutor wrote:
> def calculate_tax(dict_inp): result = {}
On 03/09/16 23:20, zakaria wrote:
> Is there any practical usage of using reference cycling?
There are a (very) few cases where data structures require the
creation of cyclic references. One example I've used is in
managing comms networks where nodes are multiply and/or
cyclically linked and you n
On 03/09/16 22:16, monik...@netzero.net wrote:
> So what does [...] mean?
Its Python's way of telling you that you have a
self referential data structure. Its just a
representational thing but without it Python
would end up printing an infinite sequence
of values.
HTH
--
Alan G
Author of the Le
Is there any practical usage of using reference cycling?
On Sat, 2016-09-03 at 14:56 +0100, Alan Gauld via Tutor wrote:
> On 03/09/16 04:25, monik...@netzero.net wrote:
>
> >
> > Is this what you mean?
> > a = 5
> > b = a
> > a = b
>
> No, you are confusing variable names with objects.
> Here
@Steven, @Khalil, @Alan
Thanks for the inputs/explanations.
Appreciate it!
Regards
Sharad
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So what does [...] mean?
-- Original Message --
From: Peter Otten <__pete...@web.de>
To: tutor@python.org
Subject: Re: [Tutor] python memory management
Date: Sat, 03 Sep 2016 14:26:12 +0200
monik...@netzero.net wrote:
>
> By:
> "reference cycles: if one object has a reference to
Hello,Am trying to solve a problem, but keep getting different errors.
Country X calculates tax for its citizens using a graduated scale rate as shown
below:
- Yearly Income: 0 - 1000Tax Rate: 0%
- Yearly Income: 1,001 - 10,000Tax Rate: 10%
- Yearly Income: 10,001 - 20,200Tax Rate: 15%
On 03/09/16 18:17, Steven D'Aprano wrote:
> One classic example of the Law Of Demeter is:
>
> "If you want your dog to come to you, don't talk to your dog's legs,
> talk to the dog."
I love that, I've never seen it before but a great example.
> But sometimes the Law Of Demeter should not apply
On Sat, Sep 03, 2016 at 02:51:22PM +0100, Alan Gauld via Tutor wrote:
[...]
> The first thing to do is point out that what you
> are asking about is the Law of Demeter on OOP.
> See Wikipedia for a full description. In essence
> it says that the user of an object should not
> directly access that
On Thu, Sep 01, 2016 at 05:35:33AM +, monik...@netzero.net wrote:
> Hi:
> I have been taking python classes for overa year now and studying and
> studying it all days long. However, I still cannot get a job as a
> python automation qa (despite of many years of experience in qa)
> because eve
On Thu, Sep 01, 2016 at 08:21:36PM +, monik...@netzero.net wrote:
> Thank you for your explanation. It is very clear and confirms what I
> thought I knew. However, I had a job interview and the interview said
> it was a mistake that I did not say that in cases when there are
> multiple prog
On 03/09/16 04:25, monik...@netzero.net wrote:
> Is this what you mean?
> a = 5
> b = a
> a = b
No, you are confusing variable names with objects.
Here you only have one object - the number 5.
For a cycle you need at least 2 objects and those
objects must be able to reference another object.
In
On 03/09/16 06:55, Sharad Singla wrote:
> What's the correct way to define/access methods of a member variable in a
> class pointing to an object?
Steven has already given you a long and comprehensive
answer based on pragmatic python programming. But since
you use the term "correct" I'll give you
On Fri, Sep 2, 2016, at 23:25, monik...@netzero.net wrote:
>
> By:
> "reference cycles: if one object has a reference to another, and
> that second object also has a reference to the first, that's a cycle."
>
> Is this what you mean?
> a = 5
> b = a
> a = b
>
> I just want to make sure I under
Hi,
Composition is a technique that allows you to express the 'has a'
relationship between your object.
I'm not a specialist of the OOP but I can see some issues in the model that
you expose in your mail.
Encapsulation and abstraction are all about designing an API. It allows you
to expose simpl
monik...@netzero.net wrote:
>
> By:
> "reference cycles: if one object has a reference to another, and
> that second object also has a reference to the first, that's a cycle."
>
> Is this what you mean?
> a = 5
> b = a
> a = b
No. int instances are immutable. The assignments above bind both /na
On Sat, Sep 03, 2016 at 11:25:07AM +0530, Sharad Singla wrote:
> Hi Pythonistas
>
> What's the correct way to define/access methods of a member variable in a
> class pointing to an object?
Python recommends that you start with the simplest thing that will work
first, which is direct attribute ac
By:
"reference cycles: if one object has a reference to another, and
that second object also has a reference to the first, that's a cycle."
Is this what you mean?
a = 5
b = a
a = b
I just want to make sure I understand.
Thank you very much for your explanation.
Monika
-- Original Mes
Hi Pythonistas
What's the correct way to define/access methods of a member variable in a
class pointing to an object?
For example, I have a class Foo that has a method foo_method:
class Foo:
def foo_method(self):
return 'bar'
Now, in another class Bar, I'd like to store an object to
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