[Linux] psutil.disk_partitions('/dev/sda') with luks will hide one partition

[Torxed]

Platform

• Arch Linux (latest)
• psutil v5.6.1

Bug description
If having a partition "hidden" behind a luks2 encryption, psutil won't be able to show the actual partition list of said luks volume. Instead, psutil will show the resulting mapper-device instead.

I'm sure this is fine for most use cases, but if you want to use psutil in order to find/target a parition for formatting, this won't cut it. Surely, umount:ing the device will probably solve the problem - but it's still a slightly strange behavior.

Here's the disk setup shown with lsblk:

[anton@Arcinstall ~]$ lsblk -o name -n
sda
├─sda1
└─sda2
  └─luksdev

import psutil
x = psutil.disk_partitions('/dev/sda')
for i in x:
    print(i)

Test results

sdiskpart(device='efivarfs', mountpoint='/sys/firmware/efi/efivars', fstype='efivarfs', opts='rw,nosuid,nodev,noexec,relatime')
sdiskpart(device='/dev/mapper/luksdev', mountpoint='/', fstype='btrfs', opts='rw,relatime,ssd,space_cache,subvolid=5,subvol=/')
sdiskpart(device='securityfs', mountpoint='/sys/kernel/security', fstype='securityfs', opts='rw,nosuid,nodev,noexec,relatime')
sdiskpart(device='tmpfs', mountpoint='/tmp', fstype='tmpfs', opts='rw,noatime')
sdiskpart(device='/dev/sda1', mountpoint='/boot', fstype='vfat', opts='rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro')

/dev/mapper/luksdev is there, but /dev/sda2 is not (where as /dev/mapper/luksdev is a sub-resource of /dev/sda2. Maybe I'm just confused and this is exactly how Linux intended it to behave, and psutil follows suit.

But perhaps list_partitions(all=True) could show the /dev/sda2 device as well?