Creating Class Objects in Loop

[D'Arcy J.M. Cain]

On Sun, 30 Mar 2008 21:34:00 -0700
John Nagle <nagle at animats.com> wrote:
>     What's actually happening to you is that you've run into one of the
> dumber features of Python - default values for parameters which are
> mutable, like lists, result in rather unexpected behavior.   The
> problem is that
> 
> 	def __init__(self, pcap = None, sids = []):

I have never liked using that form for different reasons so I never
tripped over that.  Now I have another reason to avoid it.  It's not a
huge deal to do this.

        def __init__(self, pcap = None, sids = None):
            if sids is None: sids = []

-- 
D'Arcy J.M. Cain <darcy at druid.net>         |  Democracy is three wolves
http://www.druid.net/darcy/                |  and a sheep voting on
+1 416 425 1212     (DoD#0082)    (eNTP)   |  what's for dinner.