Hmm. I don't understand the LSP to make any requirements on the
constructors. It says that instances of a subclass should be
substitutable for instances of the base class, it doesn't say anthing
how the instances are created.
Constructors as a separate language entity is an idea born of C++,
Jav
"Kent Johnson" <[EMAIL PROTECTED]> wrote
Hmm. I don't understand the LSP to make any requirements on the
constructors. It says that instances of a subclass should be
substitutable for instances of the base class, it doesn't say
anthing
how the instances are created.
LSP doesn't distinguish
On Wed, Jul 2, 2008 at 9:05 PM, Alan Gauld <[EMAIL PROTECTED]> wrote:
> "sean_mcdaniel" <[EMAIL PROTECTED]> wrote
>
>> I am having problems with classes and subclasses. Do the different
>> __init__
>> statements have to have different argument lists?
>
> You got the solution to your specific questi
"sean_mcdaniel" <[EMAIL PROTECTED]> wrote
I am having problems with classes and subclasses. Do the different
__init__
statements have to have different argument lists?
You got the solution to your specific question but to answer
your more pholosophical one:
sub classes should ideally have th
Hi y'all,
I found the problem. My __init__ statement in the subclass had an extra
underscore, which is why the baseclass __init__ was the only one called.
Duh!
Sean
sean_mcdaniel wrote:
>
> Thank you for the reply.
>
> I have made the substitution, but I still receive the same error. I
> pr
Thank you for the reply.
I have made the substitution, but I still receive the same error. I
previously defined the __init__ statements in the old way, i.e.
FileParse.__init__(self)
but with the same problematic outcome.
Thank you,
Sean
Lie Ryan wrote:
>
>> Hi Folks,
>>
>> I can redefine
> Hi Folks,
>
> I can redefine the class and I get a "TypeError: __init__() takes
> exactly 1
> argument (2 given)" error. I'm creating a SinglePeakFit object and
> not a
> FileParse one. Still puzzled...
In this:
class SinglePeakFit(FileParse):
...
def __init___(self, filename):
Hi folks,
I am having problems with classes and subclasses. Do the different __init__
statements have to have different argument lists? I expected my code to
print out "location 1" and "location 2" indicating that both __init__
statements had been successfully called, but it seems like only the
s
Hi Folks,
I can redefine the class and I get a "TypeError: __init__() takes exactly 1
argument (2 given)" error. I'm creating a SinglePeakFit object and not a
FileParse one. Still puzzled...
Thanks,
Sean
New definition:
"""Contains various classes for parsing input files. Used for various
fi
