AttributeError: 'int' object has no attribute 'output'

Question

I am trying to write a simulator in python for spiking neural networks. Network has been planned to be built from neurons and connections, as below:

Connection class:

class Connection(object):

connectionType = 0   
weight = [[0 for x in range(1)] for x in range(9)]

def __init__():
   self.threshold = 0
   self.connectionType = 0

And Neuron class:

import Connection

class Neuron(object):

ID = 1
OveralPotential = 0

def __init__(self):
    global ID
    self.input = [[0 for x in range(1)] for x in range(9)]
    self.output = [[0 for x in range(1)] for x in range(9)]
    self.id = Neuron.ID
    Neuron.ID += 1

def connect(srcNeuron, dstNeuron, connectionType):
    srcNeuron.output[dstNeuron.id] = 1
    dstNeuron.input[srcNeuron.id] = 1
    Connection.Connection.connectionType = connectionType

if __name__ == "__main__":

n1 = Neuron()
n2 = Neuron()
n3 = Neuron()
print("ID of the 3rd neuron is {0}".format(n3.id))
n4 = Neuron()
n5 = Neuron()

Neuron.connect(1,3,1)
Neuron.connect(1,4,1)
Neuron.connect(1,5,1)
Neuron.connect(2,3,1)
Neuron.connect(2,4,1)
Neuron.connect(2,5,1)

But here is the stacktrace:

ID of the 3rd neuron is 3
Traceback (most recent call last):
File "C:\Program Files\Microsoft Visual Studio      12.0\Common7\IDE\Extensions\Mic
rosoft\Python Tools for Visual Studio\2.1\visualstudio_py_util.py", line   106, in
exec_file
exec_code(code, file, global_variables)
File "C:\Program Files\Microsoft Visual Studio   12.0\Common7\IDE\Extensions\Mic
rosoft\Python Tools for Visual Studio\2.1\visualstudio_py_util.py", line 82,  in
exec_code
exec(code_obj, global_variables)
File "C:\Users\Matinking\Documents\Visual Studio  2013\Projects\NeuroSimulation
\NeuroSimulation\Neuron.py", line 31, in <module>
Neuron.connect(1,3,1)
File "C:\Users\Matinking\Documents\Visual Studio  2013\Projects\NeuroSimulation
\NeuroSimulation\Neuron.py", line 16, in connect
srcNeuron.output[dstNeuron.id] = 1
AttributeError: 'int' object has no attribute 'output'

I checked the possible duplicates in this case, like:

AttributeError: 'int' object has no attribute 'split'

and

AttributeError: 'int' object has no attribute 'write'

But none of them gave me enough insight to handle above stuff. How should I resolve it?!

Thanks in advance

You are calling the method Neuron.connect() with integer arguments then tying to access the attribute .connect in the first line of that method. What do you expect to happen? — dawg
– dawg, Commented Apr 27, 2015 at 14:56

Abhijit · Accepted Answer · 2015-04-27 14:56:23Z

0

You are passing integer values to the method

def connect(srcNeuron, dstNeuron, connectionType):
    srcNeuron.output[dstNeuron.id] = 1
    dstNeuron.input[srcNeuron.id] = 1
    Connection.Connection.connectionType = connectionType

when you are invoking it

Neuron.connect(1,3,1)
Neuron.connect(1,4,1)
Neuron.connect(1,5,1)
Neuron.connect(2,3,1)
Neuron.connect(2,4,1)
Neuron.connect(2,5,1)

I think you actually meant to specify the neurons instead of integers

Neuron.connect(n1,n3,n1)
Neuron.connect(n1,n4,n1)
Neuron.connect(n1,n5,n1)
Neuron.connect(n2,n3,n1)
Neuron.connect(n2,n4,n1)
Neuron.connect(n2,n5,n1)

answered Apr 27, 2015 at 14:56

Abhijit

64k20 gold badges143 silver badges209 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

fede1024 · Accepted Answer · 2015-04-27 14:55:51Z

0

The connect function expects two objects of type Neuron, not a neuron id. You are passing an id, that is an int and python tries to access the output field.

answered Apr 27, 2015 at 14:55

fede1024

3,10822 silver badges23 bronze badges

Collectives™ on Stack Overflow

AttributeError: 'int' object has no attribute 'output'

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related