It depends, sometimes you wont want to allow this for attribute assignment since it can be misleading. eg:

foo.bar = []

On Tue, Dec 18, 2012 at 3:45 AM, Gustavo Carneiro gjcarneiro@gmail.com wrote:

You are not wrong. On the other hand, I often depend on the fact that an empty list or dictionary is false, and true if not empty. It is quite convenient, and I find it reasonably logical.

On Mon, Dec 17, 2012 at 1:59 PM, Campbell Barton ideasman42@gmail.com wrote:

...

Take care using PyObject_IsTrue since it will accept many PyObject's (floats, lists, dicts etc), if you want to be strict with checking your input its not always so good. Instead you can use PyLong_AsLong() this works for True/False and any int type.

eg: int param = PyLong_AsLong(value); if (param == -1 && PyErr_Occurred()) { .... error out ... } ... check the int now ...

On Mon, Dec 17, 2012 at 10:23 PM, Gustavo Carneiro gjcarneiro@gmail.com wrote:

...

PyObject_IsTrue(

--

• Campbell

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-- Gustavo J. A. M. Carneiro "The universe is always one step beyond logic." -- Frank Herbert