Python – Crossplatform filepath

normally I’m using a mac for my scripts, but now I’m facing a problem on Windows.

Is there a good way to make paths ready for cross platform ?

def load_json(store):
    storename = store
    with open('./stores/' + store +'.json' ,'r') as store:
        data =
    object = json.loads(data)

On Windows im getting the error

(Errno 2) No such file or directory: './stores/alternate.json'