How to test if one dict is subset of another?

[Hendrik van Rooyen]

 "Jay Tee" <jeff.templon at gmail.com> wrote:

> Hi,
> 
> I have some code that does, essentially, the following:
> 
> - gather information on tens of thousands of items (in this case, jobs
> running on a
>      compute cluster)
> - store the information as a list (one per job) of Job items
> (essentially wrapped
>      dictionaries mapping attribute names to values)
> 
> and then does some computations on the data.  One of the things the
> code needs to do, very often, is troll through the list and find jobs
> of a certain class:
> 
> for j in jobs:
>    if (j.get('user') == 'jeff' and j.get('state')=='running') :
>       do_something()
> 
> This operation is ultimately the limiting factor in the performance.
> What I would like to try, if it is possible, is instead do something
> like this:
> 

When you are gathering the data and building the lists - why do you not 
simultaneously build a dict of running jobs keyed by the Jeffs?

- Hendrik