Declaring A Function Argument As Global?

[Pedro RODRIGUEZ]

On Thu, 16 Jan 2003 18:20:08 +0100, Tim Daneliuk wrote:

> I want to be able to write a generic list handling function which slices
> a list, but I don't want to have to return the modified list to do so.
> In other words, I purposely want the function to have a side-effect
> which modifies the list handed to it. For example:
> 
> def lhandler(list):
> 	list = list[1:]
> 

So you need to use a method provided by the object in order to modify it.
In your case, you are just creating a new object which will be bound to a
local variable.

Example :

def lhandler(list):
    list.pop(0)

or

def lhandler(list):
    del list[0]

or 

def lhandler(list):
    list.__delitem__(0)


Pedro