dictionary error: list assignment index out of range

[Vaduvoiu Tiberiu]

Well, to quote firefox: this is embarrassing. I've realized the dictionary 
initialization is wrong, as [] means its a tuple, I should use {}. That's why I 
don't like working nights..it's only in the morning when you start seeing things 
better. I apologize for the mail. Cheers





________________________________
From: Vaduvoiu Tiberiu <vaduvoiutibi at yahoo.com>
To: python-list at python.org
Sent: Fri, January 28, 2011 9:34:57 AM
Subject: dictionary error:  list assignment index out of range


Hy everyone, I'm trying to learng python for a week or two and there's a thing 
that is really disturbing me as I do not understand what the problem is. I'm 
trying to use a dictionary to remember when a user has visited a city. Code is 
really basic:

in the class init method I added
self.visited = []

and in the function where i check if city was visited:
cityNumber = 1 #example
if (not cityNumber in self.visited):
    #do some stuff
    self.visited[cityNumber] = "true"

Apparently the last line causes the error: list assignment index out of range. I 
read that this is the simplest way to assign a value to a 
dictionary(dict[key]=value). So why is the error appearing?? Thanks a lot in 
advance


      
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