On Mon, Feb 25, 2013 at 8:51 PM, Pranjal Mittal <
pranjal.mittal.ec...@iitbhu.ac.in> wrote:
>
> Hi all,
>
> I was writing a piece of code that deletes items from Python Dictionaries
> when a certain condition is met. while iterating over the dictionary.
>
> http://dpaste.com/hold/995010/
>
> However that leads to a RunTime Error.
> Though I figured out an alternate solution, I still wonder why shouldn't
> something like *Case-1 *(in the code) work ideally.
You can iterate over items:
for key, value in dictionary.items():
if value == 1:
del dictionary[key]
Sometimes it is easier to create a new dictionary instead of modifying the
existing one.
dictionary = dict((k, v) for k, v in dictionary.items() if v != 1)
Anand
http://anandology.com/
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