Rafael Knuth wrote:
> Hey there,
>
> I am trying to wrap my head around Class Inheritance in Python, and I
> wrote a little program which is supposed to calculate revenues from
> customers who don't get a discount (parent class) and those who get a
> 30% discount (child class):
>
> class FullPri
On 21/02/17 09:49, Rafael Knuth wrote:
> class DiscountCustomer(FullPriceCustomer):
> discount = 0.7
> def calculate_discount(self, rate, hours):
> print ("Your customer %s made you %s USD at a 30% discount
> rate this year." % (self.customer, self.rate * rate * discount))
I meant
On 21/02/17 09:49, Rafael Knuth wrote:
> class FullPriceCustomer(object):
> def __init__(self, customer, rate, hours):
>
>
> class DiscountCustomer(FullPriceCustomer):
> discount = 0.7
> def calculate_discount(self, rate, hours):
>
> customer_one = DiscountCustomer("Customer A", 75,
"Steven D'Aprano" wrote
Yes, Tkinter could have had a ScrolledCanvas. It could have had lots of
things, you have to draw the line somewhere otherwise you end up with
one giant module that does *everything*:
And for completeness there are a number of add-on modules in the standard
library that
"David Hutto" wrote
In previous post I asked about turtle module importing from tkinter.
But what I don't understand is why does Tkinter default it's casnvas
to ScrolledCanvas in turtle.py,
Tkinter doesn't. The author of the turtle module - which is not part of
Tkinter but simply uses it -
On Sat, 24 Apr 2010 03:41:04 pm David Hutto wrote:
> In previous post I asked about turtle module importing from tkinter.
> But what I don't understand is why does Tkinter default it's casnvas
> to ScrolledCanvas in turtle.py, and then as a 'metaclass' for
> ScrolledCanvas in turtle it calls TK.Fr
On Sat, 24 Apr 2010 01:22:54 am David Hutto wrote:
> I'm new, I touched the Holy lib, and
> didn't check to reset the original Tkinter directory before posting.
> Won't happen again.
I'm sorry we got off on the wrong foot, you caught me at a time when I
was frustrated about other things, and afte
On Fri, 23 Apr 2010 04:54:11 pm David Hutto wrote:
[...]
> > Something is screwy there. I believe you have broken your
> > installation by making changes to files without having any
> > understanding of what you are doing.
>
> My original post was incorrect: the first error should be:
>
> C:\Users\
"David Hutto" wrote
While experimenting with Tkinter(python2.6), when from Tkinter import*
is used I came across the following error:
File "C:\Python26\lib\lib-tk\Tkinter.py", line 44, in
from turtle import *
Huh? Why is Tkinter.py importing from turtle?
It doesn't in my Pyt
On Fri, 23 Apr 2010 03:11:36 pm David Hutto wrote:
> Hello List!
>
> While experimenting with Tkinter(python2.6), when from Tkinter
> import* is used I came across the following error:
>
> C:\Users\ascent>c:\python26/Script3.py
> Traceback (most recent call last):
> File "C:\python26
You're still using the wrong terminology...
A "subclass" is "derived" (or "subclassed") from its "parent class" (or
"super" class)
A function that is part of the class definition (def func1(self): pass)
is a "method"
A variable that is part of the class definition or added after
instantiation
Lamonte Harris wrote:
> Okay
>
> class A:
>def __init__(self,x,y):
> self.x = x
> self.y = y
>
>def save(self,fn):
> f = open(fn,"w")
> f.write(str(self.x)+ '\n')
> # convert to a string and add newline
> f.write(str(self.y)+'\n')
> return f # for
* John Fouhy <[EMAIL PROTECTED]> [051130 19:21]:
<..snip...>
> On 01/12/05, Tim Johnson <[EMAIL PROTECTED]> wrote:
> superclass __init__ methods, or when you want to call them. So, it is
> up to you to make that call.
>
> You can do that like this:
>
> class sub(test):
> def __init__(self):
>
On 01/12/05, Tim Johnson <[EMAIL PROTECTED]> wrote:
> My thanks to Christopher and Liam. I've revisited this
> with the following:
> class test:
> def __init__(self):
> self.s = ' there'
> def val(self,V):
> print '%s%s' % (V,self.s)
> class sub(test):
> def __init__(sel
My thanks to Christopher and Liam. I've revisited this
with the following:
class test:
def __init__(self):
self.s = ' there'
def val(self,V):
print '%s%s' % (V,self.s)
class sub(test):
def __init__(self):
pass
The following console session:
>>> T = mylib.test()
>
Hi Tim,
Either -
class test:
def __init__(self,v):
self.__val = v
def val(self):
print self.__val
class sub(test):
def __init__(self, v):
test.__init__(v)
self.val()
or -
class sub(test):
def __init__(self, v):
test.__init__(v)
Tim Johnson schrieb:
> The following code snippet is meant to test inheritance:
> class test:
> def __init__(self,v):
> self.__val = v
> def val(self):
> print self.__val
> class sub(test):
> def __init__(self):
> val()
> The following console session has an erro
17 matches
Mail list logo
