[Python-Dev] [PEP] += on return of function call result

[Luke Kenneth Casson Leighton]

On Mon, May 19, 2003 at 06:07:08PM +0200, Samuele Pedroni wrote:

> >>> def refiadd(r,v): # r+=v, r is a reference, not a an lvalue
> ...   if hasattr(r.__class__,'__iadd__'):
> ...     r.__class__.__iadd__(r,v)
> ...   else:
> ...     raise ValueError,"non-sense"
> ...

you're a star - thank you!