Function expr_to_config

hyperopt/pyll_utils.py:186–208

Populate dictionary `hps` with the hyperparameters in pyll graph `expr` and conditions for participation in the evaluation of `expr`. Arguments: expr - a pyll expression root. conditions - a tuple of conditions (`Cond`) that must be True for `expr` to be

(expr, conditions, hps)

def expr_to_config(expr, conditions, hps):
    """
    Populate dictionary `hps` with the hyperparameters in pyll graph `expr`
    and conditions for participation in the evaluation of `expr`.

    Arguments:
    expr       - a pyll expression root.
    conditions - a tuple of conditions (`Cond`) that must be True for
                 `expr` to be evaluated.
    hps        - dictionary to populate

    Creates `hps` dictionary:
        label -> { 'node': apply node of hyperparameter distribution,
                   'conditions': `conditions` + tuple,
                   'label': label
                   }
    """
    expr = as_apply(expr)
    if conditions is None:
        conditions = ()
    assert isinstance(expr, Apply)
    _expr_to_config(expr, conditions, hps)
    _remove_allpaths(hps, conditions)


def _remove_allpaths(hps, conditions):