tsp-tools 0.1.1

tsp-tools is a package for Traveling Salesman Problem for Python.

import tsp_tools
t = tsp_tools.tsp([(0,0), (0,1), (1,0), (1,1)])
print(t)  # distance, node index list
>>>
(4, [0, 2, 3, 1])

mat = [[  0,   1, 1, 1.5],
       [  1,   0, 1.5, 1],
       [  1, 1.5,   0, 1],
       [1.5,   1,   1, 0]]  # Distance Matrix
r = range(len(mat))
# Dictionary of distance
dist = {(i, j): mat[i][j] for i in r for j in r}
print(tsp_tools.tsp(r, dist))
>>>
(4, [0, 2, 3, 1])

Note: When large size, ortoolpy.ortools_vrp may be efficient.

See also https://pypi.org/project/ortoolpy/

$ pip install tsp-tools