CODEWITHSUNDEEP
python
Glueon
Glueon

Reputation: 4027

Python. Pushing values to the dictionary in dictionary

I am getting values from some source using which I need to create a dictionary of dictionary. To solve such a task in PHP I would just write a for loop and:

$arr[ifIndex][$key] = $val

I do not need to bother if a $key value really exists in my associative array - it will be created if it isn't. In Python though you get a key error so I have to check that and add a dictionary if it isn't there:

if ifIndex in data:
     data[ifIndex][entry] = val.prettyPrint()
else:
     data[ifIndex] = { entry: val.prettyPrint() }

To me that looks very ugly and I think there is way of doing that as simple as in a PHP example.

Upvotes: 3

Views: 102

Answers (1)

SlimJim
SlimJim

Reputation: 2272

a = collections.defaultdict(dict)
a['b']['c'] = 'd'

returns 

defaultdict(<type 'dict'>, {'b': {'c': 'd'}})

Upvotes: 4

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