python - How does the look up time of nested dictionaries increase? -


can comment on how complexity of dictionaries increases "nest" them further?

e.g add element follows:

dict_name[a][b][c][d] = 0

i think lookup time should same dictionary (constant time o(1)), change if add elements this?

dict_name[a][b][c]....[z]

python's dictionary implementation doesn't change nesting, no, algorithmic complexity of lookup not change. far python concerned, each [key] subscription independent object subscribing came from.

each lookup still o(1). looking nested element depth times o(1) lookup. since hard-coded depth (by using literal notation), have still o(1) constant multiplier doesn't affect big-o complexity.


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