---
id: aenum
version: "3.1.17"
license: BSD License
license_treatment: permissive
maintenance: active
---

# aenum — Advanced Enumerations (compatible with Python's stdlib Enum), NamedTuples, and NamedConstants

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install aenum
uv add aenum
poetry add aenum

## Description

Advanced Enumerations (compatible with Python's stdlib Enum), NamedTuples, and NamedConstants

WARNING: Version 3.1 has breaking changes in custom Enum settings
WARNING:
WARNING: AutoNumber has been removed
WARNING: AutoValue has been removed

aenum includes a Python stdlib Enum-compatible data type, as well as a metaclass-based NamedTuple implementation and a NamedConstant class.

An Enum is a set of symbolic names (members) bound to unique, constant values. Within an enumeration, the members can be compared by identity, and the enumeration itself can be iterated over.  Support exists for unique values, multiple values, auto-numbering, and suspension of aliasing (members with the same value are not identical), plus the ability to have values automatically bound to attributes.

A NamedTuple is a class-based, fixed-length tuple with a name for each possible position accessible using attribute-access notation as well as the standard index notation.

A NamedConstant is a class whose members cannot be rebound; it lacks all other Enum capabilities, however.

Enum classes:

- Enum: Base class for creating enumerated constants.

- IntEnum: Base class for creating enumerated constants...

## AI interpretation — verify before relying

aenum provides advanced enumeration types compatible with Python's standard Enum, plus NamedTuple and NamedConstant classes for defining symbolic constants and fixed-length named tuples.

Verdict: aenum is a stable, actively maintained library offering enhanced enumeration capabilities beyond Python's stdlib Enum. With zero known vulnerabilities, permissive licensing, no dependencies, and broad Python version support, it is a low-risk choice for projects needing advanced enum features—though note version 3.1 introduced breaking changes to custom Enum settings.

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