Python 3.4+enumterm

enum.EnumMeta

metaclass

The former name of the enum metaclass — an alias of enum.EnumType kept for compatibility.

Syntax

enum.EnumMeta is enum.EnumType

The one practical use: type(Color) is the metaclass, so isinstance(X, EnumType) answers "is X an enum class?", whereas isinstance(X, Enum) tests a single member. The rename landed in 3.11; the old name still works and is not slated for removal, but new code should say EnumType.

Examples

# Python 3.11+
import enum
print(enum.EnumMeta is enum.EnumType)   # → True
print(enum.EnumMeta.__name__)   # → EnumType

import enum
class Color(enum.Enum): RED = 1; GREEN = 2
print(type(Color) is enum.EnumMeta)   # → True
print(len(Color))   # → 2
print(list(Color))   # → [<Color.RED: 1>, <Color.GREEN: 2>]

See also

Open in the full glossarydocs.python.orgReport an inaccuracy