Bizarre behavior with mutable default arguments

[Istvan Albert]

On Dec 29, 12:50 pm, bukzor <workithar... at gmail.com> wrote:

> Is this functionality intended? It seems very unintuitive. This has
> caused a bug in my programs twice so far, and both times I was
> completely mystified until I realized that the default value was
> changing.

it is only unintuitive when you do not know about it

once you realize how it works and what it does it can actually be very
useful

i.