TypeError with NEAT

Question

I'm getting a TypeError with NEAT while trying to make a snake AI:

node_inputs.append(self.values[i] * w)
TypeError: can't multiply sequence by non-int of type 'float'

Code

class SnakeGame(object):
    def __init__(self, genomes, config):
    self.genomes = genomes
        self.nets = []

        for id, g in self.genomes:
            net = neat.nn.FeedForwardNetwork.create(g, config)
            self.nets.append(net)
            g.fitness = 0
 

code in another function but same class

def game(self):
    while True:
        for event in pg.event.get():
            if event.type == pg.QUIT:
                pg.quit()
        data = self.nets[0].activate(self.getData())
        output = data.index(max(data))

what the function getData looks like

def getData(self):
    data = [self.x_position, self.y_position, self.food_x, self.food_y, self.snakeLength]
    return data

part of code for config-feedforward.txt

[NEAT]
fitness_criterion = max
fitness_threshold = 1000
pop_size = 2
reset_on_extinction = True

Answer 1

The problem here is that 'w' is float. Consider the following examples:

"a" * 5 # this makes "aaaaa"
["a"] * 5 # this makes ["a", "a", "a", "a", "a"]

In the same logic, it would make no sense to write something like ["a"] * 5.5. If you do, you get the error that you write above. So figure out why w is a float instead of an int - could be that its value is an integer but represented as a float (e.g. 5.0).

Answer 2

The mistake I made was that I wasn't using a variable that wasn't there, along with also passing an array as an input which I guess is not allowed?