Le Fri, 08 May 2009 22:31:57 +0200, Pascal Chambon chambon.pascal@wanadoo.fr s'exprima ainsi:
And no one seemed to enjoy the possibilities of getting "potentially static variables" this way. Static variables are imo a rather bad idea, since they create "stateful functions", that make debugging and maintenance more difficult ; but when such static variable are, furthermore, potentially non-static (i.e when the corresponding function argument is supplied), I guess they become totally useless and dangerous
- a perfect way to get hard-to-debug behaviours.
If we want static vars, there are better places than default args for this. (See also the thread about memoizing). E.g. on the object when it's a method, or even on the func itself.
def squares(n): square = n * n; print square if square not in squares.static_list: squares.static_list.append(n) squares.static_list = []
squares(1);squares(2);squares(1);squares(3) print squares.static_list
Denis ------ la vita e estrany