In Python, assume that a dile containing a series of integers is named numbers.txt and exisist on the computer's disk. Write a program that reads all of the numbers store in the file and calculates their total.

Here is what I have written but it does not run:

def main(): outfile=open('numbers.txt','r') temp=outfile.readline() total=0 while temp!='': t=int(temp) total=total+i temp=outfile.readline() outfile.close() print('Total sum is:',total) main()

Text file is a file named numbers.txt with the numbers 1-50 in it.