[Tutor] Adding key, value to Dictionary

Emile van Sebille emile at fenx.com
Fri Mar 27 19:46:05 CET 2009

David wrote:
> greg whittier wrote:
>> On Fri, Mar 27, 2009 at 1:31 PM, David <david at abbottdavid.com> wrote:
>>> But I can not get this to update after the first time it is ran.
>>> def get_todo():

Other common ways this is done include:

def get_todo(todo={}):

This works well if one copy is to be used the entire time the 
application is live, although it's also often cited as a gotcha...


def get_todo(todo=None):
     if todo==None:
         todo = {}

Both the above allow you to pass in a starting todo dict, so you could 
juggle multiple todo dicts...



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