xsorted 0.0.2

Like sorted but using external sorting so that large data sets can be sorted.

xsorted

Like sorted but using external sorting so that large data sets can be sorted, for example:

>>> from random import random
>>> from six.moves import xrange
>>> from xsorted import xsorted
>>> nums = (random() for _ in xrange(pow(10, 7)))
>>> for x in xsorted(nums): pass

Installation

`$ pip install xsorted`

Usage

Just like sorted…

>>> from xsorted import xsorted
>>> ''.join(xsorted('qwertyuiopasdfghjklzxcvbnm'))
'abcdefghijklmnopqrstuvwxyz'

With reverse…

>>> ''.join(xsorted('qwertyuiopasdfghjklzxcvbnm', reverse=True))
'zyxwvutsrqponmlkjihgfedcba'

And a custom key…

>>> list(xsorted(('qwerty', 'uiop', 'asdfg', 'hjkl', 'zxcv', 'bnm'), key=lambda x: x[1]))
['uiop', 'hjkl', 'bnm', 'asdfg', 'qwerty', 'zxcv']

The implementation details of xsorted can be customized using the factory xsorter (in order to provide the same interface as sorted the partition_size is treated as an implementation detail):

>>> from xsorted import xsorter
>>> xsorted_custom = xsorter(partition_size=4)
>>> ''.join(xsorted_custom('qwertyuiopasdfghjklzxcvbnm'))
'abcdefghijklmnopqrstuvwxyz'