Function get_backend

ot/backend.py:212–229

Returns the proper backend for a list of input arrays Accepts None entries in the arguments, and ignores them Also raises TypeError if all arrays are not from the same backend

(*args)

def get_backend(*args):
    """Returns the proper backend for a list of input arrays

    Accepts None entries in the arguments, and ignores them

    Also raises TypeError if all arrays are not from the same backend
    """
    args = [arg for arg in args if arg is not None]  # exclude None entries

    # check that some arrays given
    if not len(args) > 0:
        raise ValueError(" The function takes at least one (non-None) parameter")

    for backend_impl in _BACKEND_IMPLEMENTATIONS:
        if _check_args_backend(backend_impl, args):
            return _get_backend_instance(backend_impl)

    raise ValueError("Unknown type of non implemented backend.")


def to_numpy(*args):