Gunicorn 19.7.0 发布了，Gunicorn 绿色独角兽'是一个Python WSGI
UNIX的HTTP服务器。这是一个pre-fork worker的模型，从Ruby的独角兽（Unicorn
）项目移植。该Gunicorn服务器大致与各种Web框架兼容，只需非常简单的执行，轻量级的资源消耗，以及相当迅速。 该版本至少要求 Python 2.6.0 ，包含如下改进内容： 删除了前一个版本废弃的 gunicorn_django 命令，使用命令行接口替代. 删除前一个版本废弃的 django_settings 设置项，改用 raw-env 设置替代 修改 ssl-version 默认值，从 ssl.PROTOCOL_TLSv1 改为 ssl.PROTOCOL_SSLv23. fix: initialize the group access list when initgroups is set (#1297) add environment variables to gunicorn access log format (#1291) add --paste-global-conf option (#1304) fix: print access logs to STDOUT (#1184) remove upper limit on max header size config (#1313) fix: print original exception on AppImportError (#1334) use SO_REUSEPORT if available (#1344) fix leak of duplicate file descriptor for bound sockets. add --reload-engine option, support inotify and other backends (#1368, #1459) fix: reject request with invalid HTTP versions add child_exit callback (#1394) add support for eventlets _AlreadyHandled object (#1406) format boot tracebacks properly with reloader (#1408) refactor socket activation and fd inheritance for better support of SystemD (#1310) fix: o fds are given by default in gunicorn (#1423) add ability to pass settings to GUNICORN_CMD_ARGS environnement variable which helps in container world (#1385) fix: catch access denied to pid file (#1091) many additions and improvements to the documentation
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