CODEWITHSUNDEEP
pythondictionarynumpy
zhangailin
zhangailin

Reputation: 976

Does python have a dict like container but fast like numpy.array?

I know numpy.array is much faster and cost much less memory than the python built-in list. Is there something dict like but much faster ? I only need to store int : int or int : float data.

Upvotes: 2

Views: 1263

Answers (1)

root
root

Reputation: 80396

I would take a look at series from pandas. As you can see from the examples, it works well with np.arrays:

import numpy as np

from pandas import *

randn = np.random.randn

In [309]: s = Series(randn(5), index=randn(5))

In [310]: s
Out[310]: 
 1.968290    0.132438
-0.307750    0.158168
 0.288507    2.129288
 1.002813   -0.247056
-0.450041    1.731273

In [311]: foo = np.array([0., 1.5, 1.])

In [312]: s = Series(foo)

In [313]: s
Out[313]: 
0    0.0
1    1.5
2    1.0

Upvotes: 1

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