code: def is_comment(self):
          '''Return True if the first non-empty cell starts with "#"'''
  
          for cell in self[:]:
              if cell == "":
                  continue
  
              # this is the first non-empty cell. Check whether it is
              # a comment or not.
              if cell.lstrip().startswith("#"):
                  return True
              else:
                  return False
          return Falsf is_comment(self):
          '''Return True if the first non-empty cell starts with "#"'''
  
          for cell in self[:]:
              if cell == "":
                  continue
  
              # this is the first non-empty cell. Check whether it is
              # a comment or not.
              if cell.lstrip().startswith("#"):
                  return True
              else:
                  return False
          return False
docs: Return True if the first non-empty cell starts with "#"