[PyMOL] is there bond ? How to check?

[Piter_]

Hi all
I want to write a script like this:

if there is bond between atom1 and atom2
      do something
elif there is no bond between atom1 and atom2
      do something else.

But I don't know how to check the bond existence between atoms in Pymol.

Thanks in advance for any idea how to do it.

Petro