Unable to import blivet with "minimal dependencies"

[RaitoBezarius]

I am trying to package the latest version of blivet for NixOS in order to use it with https://github.com/NixOS/nixpart ; but I'm running in a lot of issues and I'm not really accustomed to the whole project.

As far as I understand it, this project requires:

• libblockdev
• pykickstart
• pyparted
• pyudev
• libselinux
• pygobject3
• six

What I don't understand is especially, how versions are locked for these dependencies.
But, even if I try to bump everything to their latest version, I'm running in the following issue:

ValueError: Namespace BlockDev not available related to GObject, so I can only guess it is due to libblockdev, but unsure why.
I can only infer that GObject has some automatic discovery somewhere, it would be interesting to know how/why.

Do you have any idea regarding all those points?

Thanks in advance :)

[vojtechtrefny]

* pykickstart

Pykickstart is no longer needed, we've removed this dependency in 3.0 (together with moving installer-specific code to Anaconda).

You are also missing libbytesize and its python bindings.

ValueError: Namespace BlockDev not available related to GObject, so I can only guess it is due to libblockdev, but unsure why.
I can only infer that GObject has some automatic discovery somewhere, it would be interesting to know how/why.

libblockdev is a C library and we use GObject Introspection to build Python bindings for it. The ValueError you see mean GI can't find the typelib file for libblockdev (BlockDev-2.0.typelib). On Fedora it is located in /usr/lib64/girepository-1.0/BlockDev-2.0.typelib and we ship it in the libblockdev package but on some distributions (like Debian) typelib files are shipped in separate packages (gir1.2-blockdev-2.0 for Debian). I'm not sure how packaging on NixOS works, I hope this helps.

Also make sure you have the BlockDev.py file with GI overrides (in Fedora this in the standard Python site-packages folder, e.g. /usr/lib64/python3.8/site-packages/gi/overrides/BlockDev.py and in a separate python3-blockdev package).

[vojtechtrefny]

@RaitoBezarius were you able to get this working? Is there something else we can help you with or can we close this issue?

[vojtechtrefny]

I assume you were able to fix the issue and I'm closing this now, feel free to reopen the issue or report a new one if you need additional help.

[RaitoBezarius]

Hi Vojtech, thanks for your message. Indeed, I had a working version at some point so it is fine, thanks a lot!

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On Wed, Jan 6, 2021, 14:09 Vojtech Trefny ***@***.***> wrote: I assume you were able to fix the issue and I'm closing this now, feel free to reopen the issue or report a new one if you need additional help. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#894 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AACMZRAXBWFINXWAZK7WS63SYROHHANCNFSM4QRDBCRQ> .