Ducks, a Python library for database-like object lookups

What it does

Index your Python objects for fast lookup by their attributes. pip install ducks Usage  The main container in ducks is called Dex. from ducks import Dex # make some objects objects = [ { 'x' : 3 , 'y' : 'a' }, { 'x' : 6 , 'y' : 'b' }, { 'x' : 9 , 'y' : 'c' } ] # Create a Dex containing the objects. # Index on x and y. dex = Dex ( objects , [ 'x' , 'y' ]) # match objects dex [{ 'x' : { '>' : 5 , '<' : 10 }, # where 5 < x < 10 'y' : { 'in' : [ 'a' , 'b' ]} # and y is 'a' or 'b' }] # result: [{'x': 6, 'y': 'b'}] This is a Dex of dicts, but the objects can be any type, even primitives like strings. The indexes can be dict keys, object attributes, or custom functions. Yes. Here’s how the ducks…from ducks.readthedocs.io

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