linux - python udisks - enumerating device information

Question

It's apparently possible to get a lot of info relating to attached disks using the udisks binary:

udisks --show-info /dev/sda1

udisks is apparently just enumerating the data which is available udev.

Is it possible to get this information using python? say for example if i just wanted to retrieve the device serial, mount point and size.

Answer 1

You can use Udisks via dbus directly in python.

import dbus

bus = dbus.SystemBus()
ud_manager_obj = bus.get_object("org.freedesktop.UDisks", "/org/freedesktop/UDisks")
ud_manager = dbus.Interface(ud_manager_obj, 'org.freedesktop.UDisks')

for dev in ud_manager.EnumerateDevices():
    device_obj = bus.get_object("org.freedesktop.UDisks", dev)
    device_props = dbus.Interface(device_obj, dbus.PROPERTIES_IFACE)
    print device_props.Get('org.freedesktop.UDisks.Device', "DriveVendor")
    print device_props.Get('org.freedesktop.UDisks.Device', "DeviceMountPaths")
    print device_props.Get('org.freedesktop.UDisks.Device', "DriveSerial")
    print device_props.Get('org.freedesktop.UDisks.Device', "PartitionSize")

The full list of properties available is here http://hal.freedesktop.org/docs/udisks/Device.html