unable to use getPedDevice() with a loop device

[Lunarequest]

If I use a loop device as the disk when getPedDevice(), for example running the following code reliably has issues.

# Create a disk image then attach it to a loopback device (e.g. /dev/loop0)
'''
dd if=/dev/zero of=disk.img bs=512 count=2097152
losetup -f disk.img
kpartx -a /dev/loop0
'''

device = '/dev/loop0'
loop0 = parted.getDevice(device)
loop0.clobber()  # destroy existing partition table
disk = parted.newDisk(loop0)

the following error is raised

    peddisk = disk_new(device.getPedDevice())
_ped.DiskException: /dev/loop0: unrecognised disk label

is there a way I can work around this on my end?

[Lunarequest]

I can recreate this issue with the git branch aswell

[svartkanin]

Any updates on this issue?

[Lunarequest]

nope

[bitdruid]

i have the same error.

First of all it works when you set up a partition table on the image (Linux type here)
echo 'type=83' | sfdisk <device/image>

But in my case i want to read the (manipulated and broken) table of an image i created with truncate for some experiments. Just printing bare partition table infos.

However it throws the same exception when the disk partitions are not plausible. My expected behavior would be to print data anyway...

Parted package on Ubuntu is able to. You can just set to ignore this.