LINQ-for-objects style queries for Python iterables.
asq is simple implementation of a LINQ-inspired API for Python which operates over Python iterables, including a parallel version implemented in terms of the Python standard library multiprocessing module.
What It Does
asq is a package implementing queries over iterables of Python objects. asq provides a fluent interface making extensive use of method chaining to create complex queries without compromising readability. For example, to take the first five uppercased results from a list of words sorted by length and then alphabetically, try:
>>> from asq import query >>> words = ["zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"] >>> query(words).order_by(len).then_by().take(5).select(str.upper).to_list() ['ONE', 'SIX', 'TEN', 'TWO', 'FIVE']
Over 40 standard query operators are provided together with various utilities to make the API even more convenient to use in Python.
How to get it
asq is available on the Python Package Index and can be installed with easy_install from setuptools:
$ easy_install asq
Alternatively you can download and unpack the source distribution (link to the left) and install using:
$ cd asq-1.0 $ python setup.py install
This version of asq works with Python 2.6 and higher, including Python 3. It has been tested on Python 2.6, Python 2.7, Python 3.1 and Python 3.2. Furthermore it is tested on !IronPython 2.6 and !IronPython 2.7.
asq has a dependency on the ordereddict module which ships as standard with Python 2.7 and upwards, but this module must be installed separately for Python 2.6.
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