Subclassing: what is wrong here?

[Paulo da Silva]

Hi!

What's wrong with this way of subclassing?

from datetime import date

class MyDate(date):
def __init__(self,y ear,month=None, day=None):
if type(year) is str:
# The whole date is here as a string
year,month,day= map(int,string. split(year,'-'))
if year<100:
year+=2000
date.__init__(s elf,year,month, day)

When I do
d=MyDate("2007-3-15")
I got
Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: function takes exactly 3 arguments (1 given)

Thanks for any help.

[Miki]

Re: Subclassing: what is wrong here?

Hello Paulo,

What's wrong with this way of subclassing?
...

See http://sourceforge.net/tracker/index...70&atid=105470

HTH,
--
Miki <miki.tebeka@gm ail.com>

http://pythonwise.blogspot.com

[Paulo da Silva]

Re: Subclassing: what is wrong here?

Miki escreveu:

Hello Paulo,
>

>What's wrong with this way of subclassing?
>...

See http://sourceforge.net/tracker/index...70&atid=105470
>
HTH,
--
Miki <miki.tebeka@gm ail.com>

http://pythonwise.blogspot.com

>

Thanks!
It works this way:

class MyDate(date):
def __new__(cls,yea r,month=None,da y=None):
if type(year) is str:
# The whole date is here as a string
year,month,day= map(int,string. split(year,'-'))
if year<100:
year+=2000
return date.__new__(cl s,year,month,da y)