list behavior

[anton muhin]

Rene Aguirre wrote:
> Hello everybody,
> 
> I needed to add a list to a dictionary, something very simple:
> 
>>>>d = {}
>>>>l = []
>>>>l.append(1)
>>>>d["one"] = l
>>>>d
> 
> {'one': [1]}
> 
> Buen, when I just move the 'append' statement to the dictionary
> assigment then:
> 
>>>>l = []
>>>>d = {}
>>>>d["one"] = l.append(1)
>>>>d
> 
> {'one': None}
> 
> Not what I expected, then I came to the conclusion that
> [].append(value) returns 'None', why?
> 
> Rene A.

append is what is called procedure in other languages.

d["one"].append(1) should work

hth,
anton.