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JSON Web Token library for Python 3.

Project description


python-jwt is a JSON Web Token (JWT) implementation in Python developed by Gehirn Inc.


import json
from datetime import datetime, timedelta, timezone

from jwt import (
from jwt.utils import get_int_from_datetime

instance = JWT()

message = {
    'iss': '',
    'sub': 'yosida95',
    'iat': get_int_from_datetime(,
    'exp': get_int_from_datetime( + timedelta(hours=1)),

Encode the message to JWT(JWS).

# Load a RSA key from a JWK dict.
signing_key = jwk_from_dict({
    'kty': 'RSA',
    'e': 'AQAB',
    'n': '...',
    'd': '...'})
# Or load a RSA key from a PEM file.
with open('rsa_private_key.pem', 'rb') as fh:
    signing_key = jwk_from_pem(
# You can also load an octet key in the same manner as the RSA.
# signing_key = jwk_from_dict({'kty': 'oct', 'k': '...'})

compact_jws = instance.encode(message, signing_key, alg='RS256')

Decode the JWT with verifying the signature.

# Load a public key from PEM file corresponding to the signing private key.
with open('rsa_public_key.json', 'r') as fh:
    verifying_key = jwk_from_dict(json.load(fh))

message_received = instance.decode(
    compact_jws, verifying_key, do_time_check=True)

Successfuly retrieved the `message` from the `compact_jws`
assert message == message_received


You can install python-jwt with pip.

$ pip install jwt

Implementation Details

Supported Algorithms

  • Unsecured

    • none (disabled by default for security)

  • Symmetric

    • HS256

    • HS384

    • HS512

  • Asymmetric

    • PS256

    • PS384

    • PS512

    • RS256

    • RS384

    • RS512

Supported Python Versions

  • Python 3.6+


python-jwt is licensed under the Apache License version 2. See ./LICENSE.rst.

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