On 05/11/2010 05:08 PM, Ulrich Eckhardt wrote:
Hi!
I wrote a simple loop like this:
d = {}
...
for k in d:
if some_condition(d[k]):
d.pop(k)
If I run this, Python complains that the dictionary size changed during
iteration. I understand that the iterator relies on the internal structure
not changing, but how would I structure this loop otherwise?
My first approach was to simply postpone removing the elements, but I was
wondering if there was a more elegant solution.
Thanks!
Uli
i am wondering why not like this:
>>> d = {1: 'one', 2: 'two', 3: 'three'}
>>> for k,v in d.items():
... if k==1:
... del d[k]
...
>>> d
{2: 'two', 3: 'three'}
>>>
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