Write a function called csv_sum that takes a filename and returns the sum of all of the numbers in the file. The numbers are in csv format. For instance, if the contents of the file are: 12,3,2 -5 10,20,-10,8.3 Then the function should return 40.3.

Explanation:

def csv_sum(filename):

   total = 0

   try:

       f = open(filename)

       for line in f:

           words = line.strip().split(",")

           for word in words:

               total += float(word)

       f.close()

   except FileNotFoundError:

       pass

   return total

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)