Waitress WSGI server
Project description
Waitress is meant to be a production-quality pure-Python WSGI server with very acceptable performance. It has no dependencies except ones which live in the Python standard library. It runs on CPython on Unix and Windows under Python 2.7+ and Python 3.3+. It is also known to run on PyPy 1.6.0+ on UNIX. It supports HTTP/1.0 and HTTP/1.1.
For more information, see the “docs” directory of the Waitress package or http://docs.pylonsproject.org/projects/waitress/en/latest/ .
1.1.0 (2017-10-10)
Features
Waitress now has a __main__ and thus may be called with python -mwaitress
Bugfixes
Waitress no longer allows lowercase HTTP verbs. This change was made to fall in line with most HTTP servers. See https://github.com/Pylons/waitress/pull/170
When receiving non-ascii bytes in the request URL, waitress will no longer abruptly close the connection, instead returning a 400 Bad Request. See https://github.com/Pylons/waitress/pull/162 and https://github.com/Pylons/waitress/issues/64
1.0.2 (2017-02-04)
Features
Python 3.6 is now officially supported in Waitress
Bugfixes
Add a work-around for libc issue on Linux not following the documented standards. If getnameinfo() fails because of DNS not being available it should return the IP address instead of the reverse DNS entry, however instead getnameinfo() raises. We catch this, and ask getnameinfo() for the same information again, explicitly asking for IP address instead of reverse DNS hostname. See https://github.com/Pylons/waitress/issues/149 and https://github.com/Pylons/waitress/pull/153
1.0.1 (2016-10-22)
Bugfixes
IPv6 support on Windows was broken due to missing constants in the socket module. This has been resolved by setting the constants on Windows if they are missing. See https://github.com/Pylons/waitress/issues/138
A ValueError was raised on Windows when passing a string for the port, on Windows in Python 2 using service names instead of port numbers doesn’t work with getaddrinfo. This has been resolved by attempting to convert the port number to an integer, if that fails a ValueError will be raised. See https://github.com/Pylons/waitress/issues/139
1.0.0 (2016-08-31)
Bugfixes
Removed AI_ADDRCONFIG from the call to getaddrinfo, this resolves an issue whereby getaddrinfo wouldn’t return any addresses to bind to on hosts where there is no internet connection but localhost is requested to be bound to. See https://github.com/Pylons/waitress/issues/131 for more information.
Deprecations
Python 2.6 is no longer supported.
Features
IPv6 support
Waitress is now able to listen on multiple sockets, including IPv4 and IPv6. Instead of passing in a host/port combination you now provide waitress with a space delineated list, and it will create as many sockets as required.
from waitress import serve serve(wsgiapp, listen='0.0.0.0:8080 [::]:9090 *:6543')
Security
Waitress will now drop HTTP headers that contain an underscore in the key when received from a client. This is to stop any possible underscore/dash conflation that may lead to security issues. See https://github.com/Pylons/waitress/pull/80 and https://www.djangoproject.com/weblog/2015/jan/13/security/
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