Source code for deephyper.evaluator._encoder

import json
import re
import types
import uuid
from inspect import isclass

import ConfigSpace as cs
import ConfigSpace.hyperparameters as csh
import deephyper.skopt
import numpy as np
from ConfigSpace.read_and_write import json as cs_json

class Encoder(json.JSONEncoder):
    Enables JSON dump of numpy data, python functions.

    def default(self, obj):
        if isinstance(obj, uuid.UUID):
            return str(obj)
        elif isinstance(obj, np.integer):
            return int(obj)
        elif isinstance(obj, np.floating):
            return float(obj)
        elif isinstance(obj, np.bool_):
            return bool(obj)
        elif isinstance(obj, np.ndarray):
            return obj.tolist()
        elif isinstance(obj, types.FunctionType) or isclass(obj):
            return f"{obj.__module__}.{obj.__name__}"
        elif isinstance(obj,
            return str(obj)
        elif isinstance(obj, csh.Hyperparameter):
            return str(obj)
        elif isinstance(obj, cs.ConfigurationSpace):
            return json.loads(cs_json.write(obj))
            return super(Encoder, self).default(obj)

[docs]def to_json(d: dict): return json.dumps(d, cls=Encoder)
[docs]def parse_subprocess_result(result): """Utility to parse a result from a subprocess of the format `"DH-OUTPUT:..."`. Args: result: object returned by a subpross with ``stdout`` and ``stderr`` attributes. Return: The parsed value or raise an exception if an error happened. """ stdout = result.stdout stderr = result.stderr try: retval_bytes ="DH-OUTPUT:(.+)\n", stdout).group(1) except AttributeError: error = stderr.decode("utf-8") raise RuntimeError( f"{error}\n\n Could not collect any result from the run_function in the main process because an error happened in the subprocess." ) # Finally, parse whether the return value from the user-defined function is a scalar, a list, or a dictionary. retval = retval_bytes.replace( b"'", b'"' ) # For dictionaries, replace single quotes with double quotes! sol = json.loads(retval) return sol