On Aug 24, 5:32 am, Hussein B <[EMAIL PROTECTED]> wrote:
> Hi,
> I'm familiar with static method concept, but what is the class method?
> how it does differ from static method? when to use it?
I use them when I need alternative constructors for a class.
class Angle(object):
def __init__(self, degrees):
self.degrees = degrees
@classmethod
def from_radians(cls, radians):
return cls(radians / pi * 180.0)
This lets me construct a new angle with either Angle(45) or
Angle.from_radians(pi/4).
The example shows what is special about classmethods. The first
argument is a class, not an instance.
Raymond
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