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+
+:mod:`syslog` --- Unix syslog library routines
+==============================================
+
+.. module:: syslog
+   :platform: Unix
+   :synopsis: An interface to the Unix syslog library routines.
+
+
+This module provides an interface to the Unix ``syslog`` library routines.
+Refer to the Unix manual pages for a detailed description of the ``syslog``
+facility.
+
+The module defines the following functions:
+
+
+.. function:: syslog([priority,] message)
+
+   Send the string *message* to the system logger.  A trailing newline is added if
+   necessary.  Each message is tagged with a priority composed of a *facility* and
+   a *level*.  The optional *priority* argument, which defaults to
+   :const:`LOG_INFO`, determines the message priority.  If the facility is not
+   encoded in *priority* using logical-or (``LOG_INFO | LOG_USER``), the value
+   given in the :func:`openlog` call is used.
+
+
+.. function:: openlog(ident[, logopt[, facility]])
+
+   Logging options other than the defaults can be set by explicitly opening the log
+   file with :func:`openlog` prior to calling :func:`syslog`.  The defaults are
+   (usually) *ident* = ``'syslog'``, *logopt* = ``0``, *facility* =
+   :const:`LOG_USER`.  The *ident* argument is a string which is prepended to every
+   message.  The optional *logopt* argument is a bit field - see below for possible
+   values to combine.  The optional *facility* argument sets the default facility
+   for messages which do not have a facility explicitly encoded.
+
+
+.. function:: closelog()
+
+   Close the log file.
+
+
+.. function:: setlogmask(maskpri)
+
+   Set the priority mask to *maskpri* and return the previous mask value.  Calls to
+   :func:`syslog` with a priority level not set in *maskpri* are ignored.  The
+   default is to log all priorities.  The function ``LOG_MASK(pri)`` calculates the
+   mask for the individual priority *pri*.  The function ``LOG_UPTO(pri)``
+   calculates the mask for all priorities up to and including *pri*.
+
+The module defines the following constants:
+
+Priority levels (high to low):
+   :const:`LOG_EMERG`, :const:`LOG_ALERT`, :const:`LOG_CRIT`, :const:`LOG_ERR`,
+   :const:`LOG_WARNING`, :const:`LOG_NOTICE`, :const:`LOG_INFO`,
+   :const:`LOG_DEBUG`.
+
+Facilities:
+   :const:`LOG_KERN`, :const:`LOG_USER`, :const:`LOG_MAIL`, :const:`LOG_DAEMON`,
+   :const:`LOG_AUTH`, :const:`LOG_LPR`, :const:`LOG_NEWS`, :const:`LOG_UUCP`,
+   :const:`LOG_CRON` and :const:`LOG_LOCAL0` to :const:`LOG_LOCAL7`.
+
+Log options:
+   :const:`LOG_PID`, :const:`LOG_CONS`, :const:`LOG_NDELAY`, :const:`LOG_NOWAIT`
+   and :const:`LOG_PERROR` if defined in ``<syslog.h>``.
+