broken package: Pitivi

[dermetfan]

Issue description

nix-env -iA nixos.pitivi

On launch:

Could not import 'gi'. Make sure you have pygobject available.

Technical details

• System: 17.03.git.33afbf8 (Gorilla)
• Nix version: nix-env (Nix) 1.11.4
• Nixpkgs version: 17.03pre95306.a24728"

[FRidh]

That error occurs because the interpreter cannot find the Python modules. The "old" solution is to create a wrapper that sets PYTHONPATH. A better solution is to instead create a Python environment that can find the modules without setting PYTHONPATH.

I've tried that, and found out that, while Pitivi requires Python 3, some modules it depends on were build against Python 2. This is a problem.

[moretea]

It broke for me on stable with a different cause:

[maarten@maarten-laptop:~]$ nix-shell --pure -p pitivi --command pitivi
Couldn't set locale. /nix/store/1dpfyblhgrad7knv0n6k9n8ajmdll0lh-pitivi-0.96/share/locale unsupported locale setting

(.pitivi-wrapped:19980): Gtk-WARNING **: Locale not supported by C library.
	Using the fallback 'C' locale.
GLib-GIO-Message: Using the 'memory' GSettings backend.  Your settings will not be saved or shared with other applications.
ERROR - The following hard dependencies are unmet:
==================================================
- gstgtk not found on the system
Missing soft dependency:
- pycanberra not found on the system
    -> enables sound notifications when rendering is complete

[davidak]

[davidak@dc7800:~]$ nix-shell --pure -p pitivi --command pitivi

** (.pitivi-wrapped:4153): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files
ERROR - The following hard dependencies are unmet:
==================================================
- gstgtk not found on the system
Missing soft dependency:
- pycanberra not found on the system
    -> enables sound notifications when rendering is complete

---

• system: "x86_64-linux"
• host os: Linux 4.9.70, NixOS, 18.03pre123130.1bc288591ea (Impala)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 1.11.16
• channels(root): "nixos-18.03pre123130.1bc288591ea"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs

[mogorman]

@davidak on 17.09 it runs for me in a pure nix-shell or normally @dermetfan can you confirm and close?

[davidak]

Pitivi starts on my NixOS 17.09 system. It has other issues unrelated to this. (see #35318)