ContinuumIO/blaze — pull request #826 by mrocklin (2014-11-11 03:29:04+00:00)
Title: python: compute field on dicts

```Python
In [1]: from blaze import *

In [2]: d = Data({'a': [1, 2, 3], 'b': [4, 5, 6]})

In [3]: d.a.sum()
Out[3]: 6
```

This could be combined with various other datastructures, not just lists.