lists and append, and loop iteration

[Janko Hauser]

Is this what you want?

>>> d={}
>>> a=d.get('new_key',[])                    
>>> a.append('new_value')
>>> d['new_key']=a
>>> d
{'new_key': ['new_value']}
>>> 

The reference to a is necessary. But this should work like you want if 
I understand correctly

HTH
__Janko

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