Steven D'Aprano <ste...@remove.this.cybersource.com.au> wrote: >On Wed, 24 Mar 2010 21:14:23 -0700, Tim Roberts wrote: > >> Jimbo <nill...@yahoo.com> wrote: >>> >>>class stock: >>> code = "" >>> purchasePrice = 0 >>> purchaseQuantity = 0 >>> price = [] # list of recent prices >>> recentBid = [] # list of recent bids for stock >>> recentOffer = [] # list of recent offers for stock >>> stockVol = [] # list of stock quantity available on market >> >> Using lists as class variables is a very good way to create very >> surprising bugs. Consider the following: > >Don't you think that the class attributes are *supposed* to be shared by >all instances? In that case the behaviour you show is not a bug at all.
Yes, it occurred to me just after I sent that pot that I had answered a different question from the one he asked. I SUSPECT that he is using class variables as a way to initialize members, not as true class variables. Thanks for clarifying this. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. -- http://mail.python.org/mailman/listinfo/python-list
