def X(l=[]): weirdness. Python bug ?

[Bart van Deenen]

Diez B. Roggisch wrote:

> It's amazing. I didn't analyse this properly, but IMHO this issue is the
> single most asked question (or rather the effects in produces) on this
> list.
I feel a bit dumb to ask a FAQ on the newsgroup. The problem with this particular question is that I found it hard to find a query that would give meaningful answers.

Thanks for your patience all.

Bart