how to modify a driver ?

Hi, I would like to modify the ‘Expression’ of a driver with a script. Do you know how can I do this
Thanks

Thanks PKHG, someone just tell me a solution on the french forum. But I will look at your answer to see if it’s better.

S’il vous plaît le ‘link’ pour autre solution?

Voici le lien ( ‘link’ ) : BlenderClan

My armature’s name is ‘Rig’, the driver I want to modify is #121 (I counted in the drivers window), here is the script to access expression’s driver.

expr = bpy.data.objects['Rig'].animation_data.drivers.values()[121].driver.expression

Thanks

Merci bien! J’ai aussi registre chez blenderclan :smiley: