python-olm

library3.2.16pypypi✓ verified 85d ago

Python CFFI bindings for the Olm cryptographic ratchet library, used for end-to-end encryption in Matrix and other messaging protocols. Current version 3.2.16. Release cadence is irregular.

auth-security communication

pip install python-olm

package ↗homepage ↗

INSTALL

IMPORT

SIG · PYTHON-OLM

python-olm

auth-securitypythonv3.2.16

Install

1.9s avg

Import

—

Disk

20MB

Pass rate

4/ 10

Env Coverage4 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v3.2.16 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

glibc

py 3.10

✕ build_error

✓ 1.9s

py 3.11

✕ build_error

✓ 1.9s

py 3.12

✕ build_error

✓ 1.6s

py 3.13

✕ build_error

py 3.9

✕ build_error

✓ 2.3s

20MB installed

● package 20MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

Account

✓ from olm import Account

✗ from olm import Olm

OutboundGroupSession

✓ from olm import OutboundGroupSession

PkEncryption

✓ from olm import PkEncryption

Create an Olm account and print the Curve25519 identity key.

from olm import Account, Olm # Initialize the library olm = Olm() # Create an account account = Account() print(f"Account created: {account.identity_keys['curve25519']}")

Debug

Known issues

breakingIn version 3.0.0, all submodules (olm.account, olm.session, etc.) were removed. All classes must be imported directly from olm: from olm import Account, Session.

fix

Change imports: replace 'from olm.account import Account' with 'from olm import Account'.

affects: >=3.0.0

breakingThe Olm class initialization now requires calling Olm() before using other classes. Failure to do so may cause segfaults or undefined behavior.

fix

Add 'olm = Olm()' at the start of your application.

affects: >=3.0.0

deprecatedThe 'olm' module attribute for the CFFI binding (e.g., olm._olm) is deprecated and may be removed in future versions.

fix

Use the high-level Python classes instead of accessing CFFI directly.

affects: >=3.2.0

Upgrade

Version history

3.2.16latest on PyPI · released Nov 28, 2023

Audit

Dependencies

cffirequiredRequired for CFFI bindings

Agent activity

20 hits · last 30 days

node

Amazon

OpenAI (training)

Resources

packagehttps://pypi.org/project/python-olm/ ↗

homepagehttps://gitlab.matrix.org/matrix-org/olm/-/tree/master/python ↗