input: Write a function to identify and fix any bugs in the provided Python code snippet that computes the sum of elements in a list. If the given list is empty then return 0.
  
  def sum_list(list):
      sum_list = 0
      for num in list:
          sum_list += num
      return sum_list
  
  assert sum_list([1, 2, 3, 4, 5])==15
  assert sum_list([-1, -2, -3, -4, -5])==-15
  assert sum_list([0, 0, 0])==0
  assert sum_list([])==0
  assert sum_list([10, 20, 30])==60
output: def sum_list(input_list):
      total_sum = 0
      for num in input_list:
          total_sum += num
      return total_sum