aspish 0.4.0

Answer Set Programming with a friendly interface.

ASPish - Answer Set Programming for Python

aspish is an adjective meaning relating to, resembling, or having the qualities of an asp

ASPish is a library that aims to resemble ASP (Anser Set Programming) in a Python-friendly way.

Basic Usage

from aspish import Solver, predicate, var

# declarations
edge = predicate('edge', ('x', 'y'))
path = predicate('path', ('x', 'y'))

solver = Solver()
X, Y, Z = map(var, 'XYZ')

# add facts
solver.add(
    edge(1, 2),
    edge(2, 3)
)

# add rules
solver.add(
    path(X, Y) <= edge(X, Y),
    path(X, Y) <= (
        edge(X, Z),
        path(Z, Y)
    )
)

# run
solver.solve()
solver.get(path)

# returns
[{'x': 1, 'y': 2}, {'x': 2, 'y': 3}, {'x': 1, 'y': 3}]