Python Interface for UNIX syslog Library Routine

To get UNIX syslog library information, we need to use the syslog module in the program. The syslog in this module is different from the syslog library.

To use this module, we should use-Import it

import syslog

The method is as follows-

Method syslog.syslog(message) or syslog.syslog(priority, message)

This method is used to send a string type message to the system logger. Each message has a priority. The priority parameter can be used to set the priority of the given message.

Method syslog.openlog([ident [, logoption [, facility]]])

This method is used to record the options for subsequent syslog calls. The ident parameter is a string type parameter; it is contained in each message.

Method syslog.closelog()

This method is used to reset the syslog module. After importing the module, the module enters this state.

Method syslog.setlogmask(maskpri)

This method is used to set the priority mask to maskpri, it returns the previous mask value. maskpri is ignored if there is no priority.

Example code

import syslog, sys
syslog.openlog(sys.argv[0])
syslog.syslog(syslog.LOG_NOTICE, "This is a Log Notice")
syslog.openlog()

Output result

$ python3　posix_example.py
$ sudo cat　/var/log/syslog
Oct　　7　00:05:23　unix_user-VirtualBox anacron[14271]: Job `cron.daily' terminated
Oct　　7　00:05:23　unix_user-VirtualBox anacron[14271]: Normal exit (1　job run)
Oct　　7　00:17:01　unix_user-VirtualBox CRON[14396]: (root) CMD ( cd　/　&& run-parts　--report　/etc/cron.hourly)
Oct　　7　00:22:35　unix_user-VirtualBox gnome-software[1599]: no app for changed [email protected]
Oct　　7　00:22:35　unix_user-VirtualBox gnome-software[1599]: no app for changed [email protected]
Oct　　7　00:22:36　unix_user-VirtualBox gnome-shell[1296]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.59/org/ayatana/NotificationItem/software_update_available
Oct　　7　00:22:37　unix_user-VirtualBox gvfsd-metadata[3664]: g_udev_device_has_property: assertion 'G_UDEV_IS_DEVICE (device)' failed
Oct　　7　00:22:37　unix_user-VirtualBox gvfsd-metadata[3664]: g_udev_device_has_property: assertion 'G_UDEV_IS_DEVICE (device)' failed
Oct　　7　00:25:47　unix_user-VirtualBox snapd[5511]: storehelpers.go:398: cannot refresh: snap has no updates available: "core", "gnome-3-26-1604"-calculator", "gnome-characters", "gnome-logs", "gnome-system-monitor", "gtk-common-themes"
Oct　　7　00:25:47　unix_user-VirtualBox snapd[5511]: autorefresh.go:387: auto-refresh: all snaps are up-to-date
Oct　　7　00:27:32　unix_user-VirtualBox example.py: This is a Log Notice