Django outputs verbose_name in quotes and parentheses in admin panel

My problem is the following.

Code:

...
class Meta:
    verbose_name = 'сайт',
    verbose_name_plural = '1. Сайт',
...

Result:

Why Django outputs verbose_name in quotes and parentheses in admin panel?

>Solution :

Remove the commas after the string values, so that verbose_name and verbose_name_plural are defined as strings.
The trailing comma after the string values turns them into one-element tuples.

class Meta:
verbose_name = 'сайт'
verbose_name_plural = '1. Сайт'