On Sun, Sep 20, 2009 at 12:43 PM, Benjamin Kaplan <benjamin.kap...@case.edu> wrote: > On Sun, Sep 20, 2009 at 12:43 PM, Peng Yu <pengyu...@gmail.com> wrote: >> On Sun, Sep 20, 2009 at 11:32 AM, Vijayendra Bapte >> <vijayendra.ba...@gmail.com> wrote: >>> On Sep 20, 8:38 pm, Peng Yu <pengyu...@gmail.com> wrote: >>>> Hi, >>>> >>>> I have the following code. I want to change the function body of >>>> __repr__ to something like >>>> >>>> return 'In %s::%s' % ($class_name, $function_name) >>>> >>>> I'm wondering what I should write for $class_name and $function_name in >>>> python. >>>> >>>> Regards, >>>> Peng >>>> >>>> class A: >>>> def __init__(self): >>>> pass >>>> >>>> def __repr__(self): >>>> return 'In A::__repr__' >>>> >>>> a = A() >>>> print a >>> >>> Using decorator: >>> ---------------- >>> >>> def echo(func): >>> def _echo(self, *args, **kw): >>> return "In %s.%s" % (self.__class__.__name__, func.func_name) >>> >>> return _echo >>> >>> class A: >>> >>> �...@echo >>> def __repr__(self): >>> pass >>> >>> a = A() >>> print a >> >> What does @echo mean? >> >> Regards, >> Peng > > It's a decorator, which wraps the function with another function it's > the equivalent of calling > > def __repr__(self) : > pass > > __repr__ = echo(__repr__)
I looked at the table of content of python tutorial at http://docs.python.org/tutorial/ But I don't see which section discuss this concept. If it is there, would you please let me know which section I should read. Or this concept is discussed somewhere else? Regards, Peng -- http://mail.python.org/mailman/listinfo/python-list
