input: Write a function to compute the average salary from a given CSV file 'salary.csv' which contains the columns 'name' and 'salary'. Return the average salary. If the CSV file is empty, return 0.
  
  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
    return total/count
  
  assert get_average_salary('salary.csv') == 2000.0
  assert get_average_salary('empty_salary.csv') == 0
  assert get_average_salary('single_entry_salary.csv') == 1500.0
  assert get_average_salary('two_entries_salary.csv') == 2000.0
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
    return total/count
  