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pyrad is an implementation of a RADIUS client/server as described in RFC2865. It takes care of all the details like building RADIUS packets, sending them and decoding responses.

Here is an example of doing a authentication request:

from __future__ import print_function
from pyrad.client import Client
from pyrad.dictionary import Dictionary
import pyrad.packet

srv = Client(server="localhost", secret=b"Kah3choteereethiejeimaeziecumi",

# create request
req = srv.CreateAuthPacket(code=pyrad.packet.AccessRequest,
                           User_Name="wichert", NAS_Identifier="localhost")
req["User-Password"] = req.PwCrypt("password")

# send request
reply = srv.SendPacket(req)

if reply.code == pyrad.packet.AccessAccept:
    print("access accepted")
    print("access denied")

print("Attributes returned by server:")
for i in reply.keys():
    print("%s: %s" % (i, reply[i]))

Requirements & Installation

pyrad requires Python 2.7, or Python 3.6 or later

Installing is simple; pyrad uses the standard distutils system for installing Python modules:

python install

Author, Copyright, Availability

pyrad was written by Wichert Akkerman <> and is maintained by Christian Giese (GIC-de) and Istvan Ruzman (Istvan91).

This project is licensed under a BSD license.

Copyright and license information can be found in the LICENSE.txt file.

The current version and documentation can be found on pypi:

Bugs and wishes can be submitted in the pyrad issue tracker on github: