input: Write a function to compute the average salary of people from a given CSV file containing names and salaries. The function should skip the header row, sum up the salaries, count the number of entries, and return the average salary. If the file is empty, return 0.0.
  
  assert get_average_salary('salary1.csv')==2000.0
  assert get_average_salary('empty.csv')==0.0
  assert get_average_salary('salary2.csv')==2500.0
  assert get_average_salary('salary3.csv')==1500.5
  
  def get_average_salary(filename):
    total = 0
    count = 0
  
    with open(filename, 'r') as csvfile:
      csvreader = csv.reader(csvfile)
      next(csvreader) # skip header
  
      # loop through the CSV rows
      for row in csvreader:
        total += int(row[1])
        count += 1
    
    if count == 0:
      return 0.0
    
    return total/count
output: def get_average_salary(filename):
    total = 0
    count = 0
  
    with open(filename, 'r') as csvfile:
      csvreader = csv.reader(csvfile)
      next(csvreader) # skip header
  
      # loop through the CSV rows
      for row in csvreader:
        total += int(row[1])
        count += 1
    
    if count == 0:
      return 0.0
    
    return total/count