How find all childrens values of a nested dictionary, fast!

[Peter Otten]

macm wrote:

> About Peter script
> 
> I am receiving
> 
>>>> for v in f(a['a']['b']):
> ...     b.extend(v)
> ...
> Traceback (most recent call last):
>   File "<stdin>", line 2, in <module>
> TypeError: 'int' object is not iterable
> 
> I am trying understand this error.

You are probably mixing Diez' implementation of f() with my invocation code. 
Or you have modified the input data and now it contains int values.

Peter