Package python-qwt3d-qt4 broken in Lucid Lynx

[James Phillips]

Binary package hint: python-qwt3d-qt4

While this bug report is specific to Lucid, it is possibly related to bug #478230 for Karmic.

"Broken packages" error for "apt-get install python-qwt3d-qt4"

root@none:~ # apt-get install python-qwt3d-qt4
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  python-qwt3d-qt4: Depends: libqwtplot3d-qt4 but it is not installable
                    Depends: python-sip4 (>= 4.9) but it is not going to be installed
E: Broken packages
root@none:~ # apt-get install qwt3d-qt4
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package qwt3d-qt4

[James Phillips (zunzun)]

The above error message reads in part:

python-qwt3d-qt4: Depends: libqwtplot3d-qt4 but it is not installable

and note below the package name was changed to "libqwtplot3d-qt4-0":

root@none:~ # apt-get install libqwtplot3d-qt4
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libqwtplot3d-qt4 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  libqwtplot3d-qt4-0

[zzarko (zzarko-gmail)]

Besides being broken in Karmic AND Lucid, this package is in conflict with python-qwt5-qt4 and python-sip4 (qwt3d is often used together with qwt, and this is a real showstopper).

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[wyderkat (wyderka-t)]

These dependencies are broken on 10.04 ,10.10 and 11.10. Only 11.04 is free of this problem.

Is there some guide how to fix dependencies on ubuntu?

[Ricardo Aguiar (neldor)]

I am using Ubuntu 10.04 LTS at this date (20120130).

The package "python-qwt3d-qt4" depends on "libqwtplot3d-qt4", but the name
of this package was changed to "libqwtplot3d-qt4-0".

As there is no "libqwtplot3d-qt4" available, I can't install "python-qwt3d-qt4".

I can try to make a fake a package named "python-qwt3d-qt4" depending
on "python-qwt3d-qt4-0", install it and do not damage the package system,
but a version of "python-qwt3d-qt4" which depends on the right package
would be a lot better than this.

Thanks for you time.

Ric.