---
id: pyasn1-modules
version: "0.4.2"
license: BSD
license_treatment: permissive
maintenance: aging
---

# pyasn1-modules — A collection of ASN.1-based protocols modules

License: permissive · Maintenance: aging · Popularity: top 100 on PyPI

## Install

pip install pyasn1-modules
uv add pyasn1-modules
poetry add pyasn1-modules

## Description

ASN.1 modules for Python
------------------------
[![PyPI](https://img.shields.io/pypi/v/pyasn1-modules.svg?maxAge=2592000)](https://pypi.org/project/pyasn1-modules)
[![Python Versions](https://img.shields.io/pypi/pyversions/pyasn1-modules.svg)](https://pypi.org/project/pyasn1-modules/)
[![Build status](https://github.com/pyasn1/pyasn1-modules/actions/workflows/main.yml/badge.svg)](https://github.com/pyasn1/pyasn1-modules/actions/workflows/main.yml)
[![Coverage Status](https://img.shields.io/codecov/c/github/pyasn1/pyasn1-modules.svg)](https://codecov.io/github/pyasn1/pyasn1-modules)
[![GitHub license](https://img.shields.io/badge/license-BSD-blue.svg)](https://raw.githubusercontent.com/pyasn1/pyasn1-modules/master/LICENSE.txt)

The `pyasn1-modules` package contains a collection of
[ASN.1](https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-X.208-198811-W!!PDF-E&type=items)
data structures expressed as Python classes based on [pyasn1](https://github.com/pyasn1/pyasn1)
data model.

If ASN.1 module you need is not present in this collection, try using
[Asn1ate](https://github.com/kimgr/asn1ate) tool that compiles ASN.1 documents
into pyasn1 code.

**NOTE:** The package is now...

[View on SkillFed](https://skillfed.io/packages/pyasn1-modules) · [View on PyPI](https://pypi.org/project/pyasn1-modules/)