dictionary size changed during iteration

[Hans Mulder]

On 08/05/2011 00:12, Roy Smith wrote:
> In article<7xd3jukyn9.fsf at ruckus.brouhaha.com>,
>   Paul Rubin<no.email at nospam.invalid>  wrote:
>
>> Roy Smith<roy at panix.com>  writes:
>>> changes = [ ]
>>> for key in d.iterkeys():
>>>    if is_bad(key):
>>>      changes.append(key)
>>
>>      changes = list(k for k in d if is_bad(k))
>>
>> is a little bit more direct.
>
> This is true.  I still file list comprehensions under "new fangled
> toys".  While I use them, and appreciate their value, I admit they're
> not always the first thing that comes to my mind.
>
> OBTW,
>
>>      changes = [k for k in d if is_bad(k)]
>
> is even more direct :-)

How about:

	changes = filter(is_bad, d)

Or would that be too compact?

-- HansM