Reputation: 11
I'm new to python, and I'm having trouble with some code. I'm getting the error
TypeError: 'function' object has no attribute '__getitem__' at line 32
I can't figure out what's going on. From what I've seen on the internet, it means something about using a function as a list, but I can't figure that out with my code. My code is
#! /usr/local/bin/python
import random
def genFirstGen():
print "First Generation"
generation = []
for chromosomecounter in range(0, 20):
chromosome = []
fitness = 0
for genecounter in range(0, 10):
chromosome.append(random.randrange(0, 2))
for genecounter in range(0, 10):
if (chromosome[genecounter] == 1):
fitness += 1
chromosome.append(fitness)
generation.append(chromosome)
print gene
return generation
def FindMostFit(generation):
failedset = [0,0,0,0,0,0,0,0,0,0,0]
highestfitness = 0
mostfit = 0
fitparents = []
gene = []
for fitcounter in range(0, 10):
for chromosomecounter in range(0, 20):
chromosome = [generation[chromosomecounter]] # The error is here.
fitness = chromosome[10]
highestfitness = 0
if (fitness > highestfitness):
highestfitness = fitness
mostfit = chromosomecounter
fitparents.append(generation[mostfit])
generation[mostfit] = failedset
return fitparents
def BreedMostFit(Parents):
Mother = Parents(random.randrange(0, 10))
Father = Parents(random.randrange(0, 10))
child = []
for genecounter in range(0, 5):
parentgenetaken = random.randrange(0, 2)
if (parentgenetaken == 1):
child.append(Mother[genecounter * 2])
child.append(Mother[(genecounter * 2) + 1])
else:
child.append(Father[genecounter * 2])
child.append(Father[(genecounter * 2) + 1])
return child
def Generation2():
newgeneration = []
for gencounter in range(0, 20):
newgeneration.append(BreedMostFit(FindMostFit(genFirstGen)))
return newgeneration
def GenerationFunction(parentgen):
generation = []
for gencounter in range(0, 20):
generation.append(BreedMostFit(FindMostFit(parentgen)))
return generation
GenerationFunction(Generation2())
I'm at my wits end. Can anyone help? Thanks!
Upvotes: 1
Views: 7792
Reputation: 23243
What's passed to FindMostFit
is genFirstGen
function itself, not an output from called genFirstGen()
.
This:
newgeneration.append(BreedMostFit(FindMostFit(genFirstGen)))
Should look like this:
newgeneration.append(BreedMostFit(FindMostFit(genFirstGen())))
.
Upvotes: 1
Reputation: 25369
On line 62 you pass genFirstGen
function into FindMostFit
newgeneration.append(BreedMostFit(FindMostFit(genFirstGen)))
Later on line 32 you index it. I guess you wanted to call the function and pass its results instead. So replace line 62 with
newgeneration.append(BreedMostFit(FindMostFit(genFirstGen())))
Upvotes: 5