I am getting error when find the avg, the error is as follows AttributeError: 'float' object has no attribute 'start'

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#1

#Multithreaded program in Python
#import multiprocessing
import threading

passing series of numbers as array in code

nums =[12, 75, 30, 91, 49, 52, 76]

This thread will determine the average of the numbers

Python program to get average of a list

def Average():
return round((sum(nums) / len(nums)) , 2)

Driver Code

average =  Average()

Printing average of the list

print("Average of the list = " +str(average))

This thread will determine the maximum value

def maximum():
return max(nums)

Driven code

print("Maximum number in the given list is = "+ str(maximum()))

This thread will determine the minimum value

def minimum():
return min(nums)

Driven code

print("Minimum number in the given list is = "+ str(minimum()))

Creating objects for executing the threads

t1 = threading.Thread(target=Average, name=‘t1’)
t2 = threading.Thread(target=maximum, name=‘t2’)
t3 = threading.Thread(target=minimum, name=‘t3’)
t1 = Average()
t2 = maximum()
t3 = minimum()

Executing the threads, The 3 threads will store the values globally for

#the parent thread to output.

t1.start()
t2.start()
t3.start()

t1.join()
t2.join()
t3.join()

#2

The problem is in these lines:

t1 = threading.Thread(target=Average, name=‘t1’)
t2 = threading.Thread(target=maximum, name=‘t2’)
t3 = threading.Thread(target=minimum, name=‘t3’)
t1 = Average()
t2 = maximum()
t3 = minimum()

In the first 3 lines you create the threads and assign the variables t1, t2 and t3 to them. However in the last 3 lines you reassign these variables to be the return value of the functions Average() etc.

Looking at the Average() function:

def Average():
return round((sum(nums) / len(nums)) , 2)

The round function in Python returns a floating point number which gets assigned to t1 (for instance: 10.0). Then you proceed to call the start function on the variable t1, which represents a float at this moment:

t1.start()

As a floating point does not have a start() function, it throws an AttributeError!

Hope this helps!

#3

Yes tried what you suggested and removed the lines reassigning the variables, the error is gone
import threading
nums =[12, 75, 30, 91, 49, 52, 76]

def Average(nm):
return sum(nm) / len(nm)

average = Average(nums)

print("Average of the list = " +str(average))

def maximum(mx):
return max(mx)

print("Maximum number in the given list is = "+ str(maximum(nums)))

def minimum(mn):
return min(mn)

print("Minimum number in the given list is = "+ str(minimum(nums)))

t1 = threading.Thread(target=Average, args=(nums,))
t2 = threading.Thread(target=maximum, args=(nums,))
t3 = threading.Thread(target=minimum, args=(nums,))

t1.start()
t2.start()
t3.start()

t1.join()
t2.join()
t3.join()

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