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scala like collection interface for python iterable.

Project description

scala collection like interface for python iterato.r

Iterable object:

>>> from scalalike.collections import Iterable
>>> it = Iterable(range(10))
>>> it
<scalalike.collections.collection.Iterable object at 0x9b0428c>
>>> it.to_list()
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> it.map(lambda x:x*2).to_list()
[0, 2, 4, 6, 8, 10, 12, 14, 16, 18]
>>> it.filter(lambda x:x%2 == 0).to_list()
[0, 2, 4, 6, 8]
>>> it.filter(lambda x:x%2 == 0).map(lambda x:x*2).to_list()
[0, 4, 8, 12, 16]
>>> it.flatmap(lambda x: [x, x]).to_list()
[0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9]
>>> it.take(4).to_list()
[0, 1, 2, 3]
>>> it.foldleft(lambda x, y: x+y)
45

Map object:

>>> from scalalike.collections import Iterable
>>> mp = Map(aa=10, bb=20)
>>> mp
{'aa': 10, 'bb': 20}
>>> mp.map(lambda (k, v): (k, v*2))
{'aa': 20, 'bb': 40}
>>> mp.filter(lambda (k, v): k == 'bb')
{'bb': 20}

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