[pygtk] get label from notebook tab

[Alexander Kuleshov]

Hi to all.
I have a gtk.Notebook and i want get text of label from current
gtk.noteBook tab. I make that:

text = self.get_tab_label(self.get_nth_page(self.get_current_page()))

But on tab i have hbox and label with close button in hbox.

if i print text i see None because it return HBox.  How can i get text
from label?

Thank you.