More of the same:
<<<>Under french confidentially law you theoretically need written permission
>from everyone who will appear in your shot

and in many cases also from the owner or architects of the buildings

> before you take a photo. You&#39;d
>probably be OK with a discreet 35mm, but LF, tripod etc will attract

If this is called "confidentially law", that I do not know. It is
paras 9-2 (everybody has the right to the picture of ....himself) and
544-1 (... buildings of which he is the owner) of the Code Civile.