On 26 Apr 2005 13:58:23 -0700, "Lonnie Princehouse" <[EMAIL PROTECTED]> wrote:
>A quick, hackish way to keep a static variable is to declare it as a >parameter and give it a default value. The parameter list is evaluated >when the function is compiled, not when it is called. The underscores >are added as per convention to indicate that the variable is >special/private. > >Example- > >def cumulative_sum(arg, __static__ = []): > __static__.append(arg) > return reduce(lambda a,b: a + b, __static__) > >#------------------- > >>>> cumulative_sum(1) >1 >>>> cumulative_sum(1) >2 >>>> cumulative_sum(1) >3 > This default-value hack is what my presets decorator was motivated to replace (if you are willing to depend to a byte-code-hacking decorator ;-) Regards, Bengt Richter -- http://mail.python.org/mailman/listinfo/python-list
