can`t draw band structure

[Mikle]

I try to use this package for drawing band structure but it gives me a error. A lot of people complain about this issue but all I found was use sudo apt-get install libgnomeui-0 this command for instalation library. And it didn`t work. The massage I get is:

 /usr/lib/python2.7/dist-packages/p4vasp/applet/GraphWindowApplet.py:266: GtkWarning: IA__gtk_widget_set_events: assertion '!gtk_widget_get_realized (widget)' failed"
   x.set_events(event_mask)
 Traceback (most recent call last):
   File ""/usr/share/p4vasp/p4v.py"", line 642, in idle_func"
     scheduler().next()
   File ""/usr/lib/python2.7/dist-packages/p4vasp/schedule.py"", line 51, in next"
     return self[0].next()"
   File ""/usr/lib/python2.7/dist-packages/p4vasp/applet/ElectronicApplet.py"", line 462, in updateEigenvaluesGen
     ly=len(ev[0][0])
 TypeError: __len__() should return an int

Can You help me with this issue?

[Graham Inggs (ginggs)]

Which version of Ubuntu?

[Mikle (dftsher)]

Ubuntu 14.04 LTS (Trusty Tahr)

[Graham Inggs (ginggs)]

See: https://launchpad.net/ubuntu/+source/p4vasp

The version of p4vasp in 16.04 lists some fixes, and the version in 18.04 is the latest (last) upstream version.

I suggest upgrading Ubuntu.

[Mikle (dftsher)]

Thank you for your suggestion. I`ve installed Mint-19.2 based on Ubuntu 18.04. And now band structre is ploting, but I cannot export graph. p4vasp writes:
(p4v.py:15692):libglade-WARNING **; 04:20:50.413: unknown attribute `swapped` for <signal>
/usr/lib/python2.7/dist-packages/p4vasp/applet/GraphWindowApplet.py:266: GtkWarning: IA__gtk_widget_set_events: assertion '!gtk_widget_get_realized (widget)' failed
  x.set_events(event_mask)

[Graham Inggs (ginggs)]

Would you attach your input file and steps to reproduce the problem please?

[Mikle (dftsher)]

Do you mean input file that I got from vasp?

[Mikle (dftsher)]

I found my mistake when exporting the graph, you need to create a file with the required extension. Thank you for your help.