missing dependency

[Marco van Hulten]

After installing the package 'python3-ferret' on a relatively freshly installed Ubuntu 20.04, I could start the program but it could not open any windows. 'set window/new' resulted in the message

> grdelWindowCreate: error when calling createWindow in pyferret.graphbind: The PQ viewers requires PyQt5 or PyQt4.

After installing 'python3-qtpy' (pulling in 27 new packages) it did work. Including 'python3-qtpy' (or, possibly, one or more relevant dependencies thereof) as a dependency of 'python3-ferret' would solve the issue.

[Marco van Hulten (marco-hulten)]

Correction, I do not actually get a new window. I have this:

    yes? set window/new

and don't get back my prompt (waited for at least 10 minutes), and three 'python3' processes are running utilising maximum CPU.

I don't know if this problem is a consequence of my solution to the original problem.

[Launchpad Janitor (janitor)]

This bug was fixed in the package pyferret - 7.6.5~beta-1build1

---------------
pyferret (7.6.5~beta-1build1) jammy; urgency=medium

  * No-change rebuild with Python 3.10 as supported version

 -- Graham Inggs <email address hidden> Tue, 26 Oct 2021 14:05:18 +0000

[Marco van Hulten (marco-hulten)]

Thanks!

But the package version is only 7.6.0-4ubuntu1 in jammy [1]. Or is it not visible there as jammy is in testing?

[1]: https://packages.ubuntu.com/jammy/ferret-vis