simpleai 0.5.9

simpleai is a Python module based and inspired in aima-python: https://code.google.com/p/aima-python/.

We implement most of the searches in aima-python plus some extra options. Besides, we make some improvements in terms of code readability, installation, testing, and others.

Installation

Just get it:

    pip install simpleai

Examples

Simple AI allows you to define problems and look for the solution with different strategies. Another samples are in the *samples* directory, but here is an easy one.

This problem tries to create the string "HELLO WORLD" using the A* algorithm:

    from simpleai.models import Problem
    from simpleai.methods import astar_search

    GOAL = 'HELLO WORLD'

    class HelloProblem(Problem):
        def actions(self, state):
            if len(state) < len(GOAL):
                return [c for c in ' ABCDEFGHIJKLMNOPQRSTUVWXYZ']
            else:
                return []

        def result(self, state, action):
            return state + action

        def is_goal(self, state):
            return state == GOAL

        def heuristic(self, state):
            # how far are we from the goal?
            wrong = sum([1 if state[i] != GOAL[i] else 0
                        for i in range(len(state))])
            missing = len(GOAL) - len(state)
            return wrong + missing

    problem = HelloProblem(initial_state='')
    result = astar_search(problem)

    print result
    print result.path()


Product's homepage

Requirements:

· Python