Safely access key from nested dict

safely_access_key_from_nested_dict.py

def accessr(d, keys, default=None):
    if len(keys) and d is not None:
        return accessr(d.get(keys[0], default), keys[1:], default)
    else: 
        return d
    
def access(d, keys, default=None):
    for k in keys:
        if d is not None:
            d = d.get(k, default)
        else: 
            break
    return d