code: def is_email_simple(value):
          
          # An @ must be in the middle of the value.
          if '@' not in value or value.startswith('@') or value.endswith('@'):
              return False
          try:
              p1, p2 = value.split('@')
          except ValueError:
              # value contains more than one @.
              return False
          # Dot must be in p2 (e.g. example.com)
          if '.' not in p2 or p2.startswith('.'):
              return False
          return True
docs: Return True if value looks like an email address.