Stef Mientki wrote:
> hello,
>
> I want to remove some items from a dictionary,
> so I would expect this should work:
>
> Nets = {}
> ... fill the dictionary Nets
>
> for net in Nets:
> if net.upper() in Eagle_Power_Nets :
> del Nets [ net ]
>
>
> But it gives me
> Message File Name Line Position
> Traceback
> ? D:\data_to_test\JALsPy\Eagle_import.py 380
> RuntimeError: dictionary changed size during iteration
>
>
> Now I can solve this problem in the following way
>
> power_nets = []
> for net in Nets:
> if net.upper() in Eagle_Power_Nets :
> power_nets.append ( net )
>
> # remove power nets from netlist
> for net in power_nets:
> del Nets [ net ]
>
>
> But I wonder if this is the best way to manipulate a dictionary,
> because I've to do more "complex" operations on the dictionary,
> like joining items,
> I would like to have a better understanding of what can and what can't
> be done.
>
> thanks,
> Stef Mientki
Remoing elements from a dict is done with del, try this;
>>> d = {'a' : 1,'b' : 2}
>>> del d['a']
>>> print d
{'b': 2}
>>>
maybe you can post a working snippet to demonstrate your problem
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