"Kent Johnson" wrote
> We can fake the Delphi style by using a default constructor and then
> just
> calling the "constructors" after initialisation:
> But its two lines not one... :-(
Why not this?
class C:
def __init__(self): pass
@staticmethod
def LoadFromFile(fname, count):
c
"Kent Johnson" wrote
But its two lines not one... :-(
Why not this?
class C:
def __init__(self): pass
@staticmethod
def LoadFromFile(fname, count):
c = C()
# init c from the file
return c
and similar for Create(). Client code is one line:
c = C.LoadFromFile(fn, cnt)
Kent
On Mon, Jun 1, 2009 at 3:55 PM, Alan Gauld wrote:
>
> "W W" wrote
>
>> class C:
>>> @constructor
>>> def LoadFromFile(fname, count): ...
>>> @constructor
>>> def Create(valueTuple):...
>>>
>>> Personally I prefer the Delphi style sincve it makes the constructor
>>> call explicit and adds
On Mon, Jun 1, 2009 at 4:55 PM, Alan Gauld wrote:
> We can fake the Delphi style by using a default constructor and then just
> calling the "constructors" after initialisation:
>
> class C:
> def __init__(): pass
> @constructor
> def LoadFromFile(fname, count): ...
> �...@c
"W W" wrote
class C:
@constructor
def LoadFromFile(fname, count): ...
@constructor
def Create(valueTuple):...
Personally I prefer the Delphi style sincve it makes the constructor
call explicit and adds to the documentation.
Alan G
That does make it problematic... although I sup
On Mon, Jun 1, 2009 at 8:59 AM, Alan Gauld wrote:
>
> "W W" wrote
>
> ( Multiple constructors (or factory methods) is one feature I would like
>>> to see added to Python! )
>>>
>>
>> Wouldn't it be possible to create sort of a... bastardization? i.e.
>>
>> def __init__(self, *args):
>> if len
Chris,
Thanks for your well-written reply. Your analogy to the
complexities of other special methods is well noted. I'll accept
the "small price for flexibility" that you note, if necessary.
However, I still desire a cleaner solution.
I can examine the inherited slots to see which sp
"W W" wrote
( Multiple constructors (or factory methods) is one feature I would
like
to see added to Python! )
Wouldn't it be possible to create sort of a... bastardization? i.e.
def __init__(self, *args):
if len(args) == 0:
#do something
if len(args) == 1:
#do somethin
On Mon, Jun 1, 2009 at 2:27 AM, Alan Gauld wrote:
>
> "Kent Johnson" wrote
>
>> > Yesterday, I posted a question to python-list involving custom
>> > deepcopies in an inheritance hierarchy. I haven't received any
>>
>> ISTM that in general B.__deepcopy__() should call A.__deepcopy__() to do
>> th
"Kent Johnson" wrote
> Yesterday, I posted a question to python-list involving custom
> deepcopies in an inheritance hierarchy. I haven't received any
ISTM that in general B.__deepcopy__() should call
A.__deepcopy__() to do the "A" part of the work. In your example,
this won't work because
On Sun, May 31, 2009 at 5:35 PM, Michael H. Goldwasser wrote:
>
> Yesterday, I posted a question to python-list involving custom
> deepcopies in an inheritance hierarchy. I haven't received any
> responses, so I thought I'd cross-post to see if anyone on tutor
> has any thoughts.
>
> To avoid spl
Yesterday, I posted a question to python-list involving custom
deepcopies in an inheritance hierarchy. I haven't received any
responses, so I thought I'd cross-post to see if anyone on tutor
has any thoughts.
To avoid splitting the thread, I'll simply reference the original post at
http://mail.p
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