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From: Roy Smith <roy@panix.com>
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Date: Wed, 2 Apr 2014 13:58:16 -0400
Subject: Retrieve item deep in dict tree?
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Xref: csiph.com comp.lang.python:69549

I have a big hairy data structure which is a tree of nested dicts.  I =
have a sequence of strings which represents a path through the tree.  =
Different leaves in the tree will be at different depths (which range =
from 1 to about 4 or 5 at most).  I want to get the value stored at that =
path.  Thus, if

keys =3D ['foo', 'bar', 'baz']

I want to retrieve tree['foo']['bar']['baz'].

Is there some idiomatic, non-cryptic way to write that as a one-liner?

I'm using Python 2.7.

---
Roy Smith
roy@panix.com