extension to open a location inside nautilus in the same tab

[Tomáš Hnyk <tomashnyk gmail com>]

Hello,
I would like to write an extension that would follow a symbolic link to  
its real location.
I.e if I have a link ~/foo into ~/bar/foo/, I would like get to ~/bar/foo/  
so that going to parent directory via ALT+up would get me to ~/bar/ and  
not to ~.
I would like to do this in the same window and tab. I know how to do this  
by opening a new window, but I would like to reuse an existing window. Is  
that possible? I could not find it here:  
https://developer.gnome.org/libnautilus-extension/stable/
I am writing the extension in Python, if it matters.
Regardas,
Tomas