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PyPI · #1315 most downloaded on PyPI
WebSocket client & server library, WAMP real-time framework
Last release 2 months ago
15 Jul 2026
Release timing varies
gaps range from 9 days to 1.2 years
Nearly every release is documented
notes for 57 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
15 years old
161 releases · first in 2011
migrated various WAMP examples to WAMP v2
all WAMP v1 code removed
migrated various WAMP examples to WAMP v2
improved unicode/bytes handling
lots of code quality polishment
more unit test coverage
small fixes (unicode handling and such)
docs polishing
small fixes (unicode handling and such)
One column per quarter.
add automatic WebSocket ping/pong
add automatic WebSocket ping/pong (#24)
WAMP-CRA client side (beta!)
support WSS for Application class
fix Application class (#240)
support WSS for Application class
remove implicit dependency on bzip2 (#244)
WAMP application payload validation hooks
WAMP application payload validation hooks
added Tox based testing for multiple platforms
code quality fixes
hooks and infrastructure for WAMP2 authorization
hooks and infrastructure for WAMP2 authorization
new examples: Twisted Klein, Crochet, wxPython
improved WAMP long-poll transport
improved stats tracker
WAMP-over-Long-poll (preliminary)
WAMP-over-Long-poll (preliminary)
WAMP Authentication methods CR, Ticket, TOTP (preliminary)
WAMP App object (preliminary)
various fixes
Published __ * maintenance release
maintenance release
initial support for WAMP on asyncio
initial support for WAMP on asyncio
new WAMP examples
WAMP ApplicationRunner
Published __ * maintenance release
maintenance release
allow factories to operate without WS URL
started reworking docs
allow factories to operate without WS URL
fix behavior on second protocol violation
support WAMP endpoint/handler decorators
support WAMP endpoint/handler decorators
new examples for endpoint/handler decorators
fix excludeMe pubsub option
Nothing published for this version
Nothing published for this version
initial support for WAMP v2 authentication
initial support for WAMP v2 authentication
various fixes/improvements to WAMP v2 implementation
new example: WebSocket authentication with Mozilla Persona
polish up documentation
fix bug with closing router app sessions
fix bug with closing router app sessions
compatibility with latest WAMP v2 spec ("RC-2, 2014/02/22")
compatibility with latest WAMP v2 spec ("RC-2, 2014/02/22")
various smaller fixes
WAMP v2 basic router (broker + dealer) implementation
WAMP v2 basic router (broker + dealer) implementation
WAMP v2 example set
WAMP v2: decouple transports, sessions and routers
support explicit (binary) subprotocol name for wrapping WebSocket factory
fix dependency on MsgPack
new: complete WAMP v2 protocol implementation and API layer
new: complete WAMP v2 protocol implementation and API layer
new: basic WAMP v2 router implementation
existing WAMP v1 implementation renamed
fix WebSocket server HTML status page
fix WebSocket server HTML status page
fix close reason string handling
new "slowsquare" example
Python 2.6 fixes
support asyncio on Python 2 (via "Trollius" backport)
support asyncio on Python 2 (via "Trollius" backport)
Published __ * really fix setup/packaging
really fix setup/packaging
Published __ * setup fixes * fixes for Python2.6
setup fixes
fixes for Python2.6
support WebSocket (and WAMP) over Twisted stream endpoints
asyncio support
Python 3 support
support WebSocket (and WAMP) over Twisted stream endpoints
support Twisted stream endpoints over WebSocket
twistd stream endpoint forwarding plugin
various new examples
fix Flash policy factory
Twisted reactor is no longer imported on module level (but lazy)
Twisted reactor is no longer imported on module level (but lazy)
optimize pure Python UTF8 validator (10-20% speedup on PyPy)
opening handshake traffic stats (per-open stats)
add multi-core echo example
fixes with examples of streaming mode
fix zero payload in streaming mode
support latest permessage-deflate draft
support latest permessage-deflate draft
allow controlling memory level for zlib / permessage-deflate
updated reference, moved docs to "Read the Docs"
fixes #157 (a WAMP-CRA timing attack very, very unlikely to be exploitable, but anyway)
WebSocket compression: client and server, permessage-deflate, permessage-bzip2 and permessage-snappy
symmetric RPCs
WebSocket compression: client and server, permessage-deflate, permessage-bzip2 and permessage-snappy
onConnect is allowed to return Deferreds now
custom publication and subscription handler are allowed to return Deferreds now
support for explicit proxies
default protocol version now is RFC6455
option to use salted passwords for authentication with WAMP-CRA
automatically use ultrajson acceleration package for JSON processing when available
automatically use wsaccel acceleration package for WebSocket masking and UTF8 validation when available
allow setting and getting of custom HTTP headers in WebSocket opening handshake
various new code examples
various documentation fixes and improvements
base version when we started to maintain a changelog
base version when we started to maintain a changelog
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
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