input: Write a function to compute the average salary of people from a given CSV file. The CSV file contains a 'name' and 'salary' column where each row represents an individual's salary. If the file is empty or no salaries are provided, 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('salary_none.csv')==0
output: import csv
  
  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:
        if len(row) > 1:
          total += int(row[1])
          count += 1
    
    if count == 0:
      return 0
    return total/count