How to get last read page to use in Calibre

[Xwang]

Hi to all,

I would like to better integrate okular with calibre by writing a 
calibre plugin which opens the selected PDF file with okular and then 
saves the number of the last read page on a specific column in my 
calibre database when I close okular.

I've seen that okular stores an .xml file for each opened file under 
~/.local/share/okular/docdata/ and uses the .xml content to reopen the 
pdf file at the  last read page.

Is it possible to have the last read page as a return value when closing 
okular?

Otherwise is there any function I can call to get the last read page 
giving the file name? (I presume something similar is used internally by 
okular to open the file at its latest read page).

The plugin is written in python so if any binding with python already 
exist I will be happy to use it.

Any suggestion is appreciated!

Have a nice day