On Apr 29, 6:46 am, Bruno Desthuilliers <bruno. 42.desthuilli...@websiteburo.invalid> wrote: > Filip Gruszczyński a écrit : > > > One of the Python Zen rules is Explicit is better implicit. And yet > > it's ok to do: > > > if x: > > do_sth > > > when x is string or list. Since it's very comfy, I've got nothing > > against though. I am just curious, why is it so? > > Because it is explicit (or at least considered as such) that in Python, > an empty list or string (as well as empty tuples, dicts and sets and > numeric zeros, False and None) have a false value in a boolean context.
I think a better answer to this question is: "The Zen of Python is not called the Cold Hard Rules of Python"; in this case the language goes against this particluar Zen as it does in many other places. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
