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POPython: Easily access deeply nested dict (get and set)
 

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    <p>I'm building some Python code to read and manipulate deeply nested dicts (ultimately for interacting with JSON services, however it would be great to have for other purposes) I'm looking for a way to easily read/set/update values deep within the dict, without needing a lot of code. </p> <p>@see also <a href="https://stackoverflow.com/questions/3031219/python-recursively-access-dict-via-attributes-as-well-as-index-access">Python: Recursively access dict via attributes as well as index access?</a> -- Curt Hagenlocher's "DotDictify" solution is pretty eloquent. I also like what Ben Alman presents for JavaScript in <a href="http://benalman.com/projects/jquery-getobject-plugin/" rel="nofollow noreferrer">http://benalman.com/projects/jquery-getobject-plugin/</a> It would be great to somehow combine the two.</p> <p>Building off of Curt Hagenlocher and Ben Alman's examples, it would be great in Python to have a capability like:</p> <pre><code>&gt;&gt;&gt; my_obj = DotDictify() &gt;&gt;&gt; my_obj.a.b.c = {'d':1, 'e':2} &gt;&gt;&gt; print my_obj {'a': {'b': {'c': {'d': 1, 'e': 2}}}} &gt;&gt;&gt; print my_obj.a.b.c.d 1 &gt;&gt;&gt; print my_obj.a.b.c.x None &gt;&gt;&gt; print my_obj.a.b.c.d.x None &gt;&gt;&gt; print my_obj.a.b.c.d.x.y.z None </code></pre> <p>Any idea if this is possible, and if so, how to go about modifying the DotDictify solution?</p> <p>Alternatively, the get method could be made to accept a dot notation (and a complementary set method added) however the object notation sure is cleaner.</p> <pre><code>&gt;&gt;&gt; my_obj = DotDictify() &gt;&gt;&gt; my_obj.set('a.b.c', {'d':1, 'e':2}) &gt;&gt;&gt; print my_obj {'a': {'b': {'c': {'d': 1, 'e': 2}}}} &gt;&gt;&gt; print my_obj.get('a.b.c.d') 1 &gt;&gt;&gt; print my_obj.get('a.b.c.x') None &gt;&gt;&gt; print my_obj.get('a.b.c.d.x') None &gt;&gt;&gt; print my_obj.get('a.b.c.d.x.y.z') None </code></pre> <p>This type of interaction would be great to have for dealing with deeply nested dicts. Does anybody know another strategy (or sample code snippet/library) to try?</p>
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