The Enum class in the standard library allows you to use enumerations.

Since enumeration types are used to represent constants, it is recommended that Enum member names be in uppercase.

You can verify the behavior with the following code. For details, the Enum HOWTO provides a clear summary.

from enum import Enum, auto

class Colors(Enum):
    """
    >>> print(Colors.GREEN)
    Colors.GREEN
    >>> Colors.GREEN
    <Colors.GREEN: 2>
    >>> Colors(2)
    <Colors.GREEN: 2>
    >>> Colors["GREEN"]
    <Colors.GREEN: 2>
    >>> Colors(2).name
    'GREEN'
    >>> Colors(2).value
    2
    >>> Colors["MIDORI"] # MIDORI is an alias for GREEN
    <Colors.GREEN: 2>
    >>> Colors.MIDORI # MIDORI is an alias for GREEN
    <Colors.GREEN: 2>
    >>> [color for color in Colors]
    [<Colors.RED: 1>, <Colors.GREEN: 2>, <Colors.BLUE: 3>]
    >>> {color.name: color.value for color in Colors}
    {'RED': 1, 'GREEN': 2, 'BLUE': 3}
    """
    RED = 1
    GREEN = 2
    BLUE = 3
    MIDORI = 2

class Weekday(Enum):
    """
    >>> Weekday.FIRST_DAY_OF_WEEK
    <Weekday.MONDAY: 1>
    >>> from datetime import datetime
    >>> day = datetime.strptime("2024-03-23", '%Y-%m-%d')
    >>> Weekday.from_date(day)
    <Weekday.SATURDAY: 6>
    """
    MONDAY = 1
    TUESDAY = 2
    WEDNESDAY = 3
    THURSDAY = 4
    FRIDAY = 5
    SATURDAY = 6
    SUNDAY = 7
    FIRST_DAY_OF_WEEK = 1

    @classmethod
    def from_date(cls, date):
        return cls(date.isoweekday())

class Vehicles(Enum):
    """
    >>> [member.value for member in Vehicles]
    [1, 2, 3]
    """
    Car = auto()
    Airplane = auto()
    Bicycle = auto()

class AutoName(Enum):
    @staticmethod
    def _generate_next_value_(name, start, count, last_values):
        return name

class Ordinal(AutoName):
    """
    >>> [member.value for member in Ordinal] # Override the value returned by auto() with _generate_next_value_()
    ['NORTH', 'SOUTH', 'EAST', 'WEST']
    """
    NORTH = auto()
    SOUTH = auto()
    EAST = auto()
    WEST = auto()

if __name__ == "__main__":
    import doctest

    doctest.testmod()

Reference

Enum HOWTO

Enum Support