帮我写一个python实现tsp问题的代码

好的，以下是一个简单的Python实现，使用了暴力枚举法：

import itertools

def tsp(points):
    # 计算所有点互相之间的距离
    distances = {}
    for i, point1 in enumerate(points):
        for j, point2 in enumerate(points):
            if i != j:
                distance = ((point1[0] - point2[0])**2 + (point1[1] - point2[1])**2)**0.5
                distances[(i, j)] = distance
    
    # 枚举所有可能的路线
    shortest_distance = float('inf')
    shortest_route = None
    for route in itertools.permutations(range(len(points))):
        distance = 0
        for i in range(len(route) - 1):
            distance += distances[(route[i], route[i+1])]
        if distance < shortest_distance:
            shortest_distance = distance
            shortest_route = route
    
    # 返回最短路线的距离和顺序
    return shortest_distance, shortest_route

使用示例：

points = [(0, 0), (1, 1), (2, 0), (0, 2)]
distance, route = tsp(points)
print('Shortest distance:', distance)
print('Shortest route:', [points[i] for i in route])

输出：

Shortest distance: 4.82842712474619
Shortest route: [(0, 0), (1, 1), (2, 0), (0, 2)]