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Add "module" estimator spec #183

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Jul 13, 2017
Merged

Add "module" estimator spec #183

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13 changes: 12 additions & 1 deletion osprey/config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,7 @@

FIELDS = {
'estimator': ['pickle', 'eval', 'eval_scope', 'entry_point',
'params'],
'params', 'module'],
'dataset_loader': ['name', 'params'],
'trials': ['uri', 'project_name'],
'search_space': dict,
Expand Down Expand Up @@ -149,7 +149,18 @@ def estimator(self):
pickle: path-to-pickle-file.pkl
eval: "Pipeline([('cluster': KMeans())])"
entry_point: sklearn.linear_model.LogisticRegression
module: myestimator
"""
module_path = self.get_value('estimator/module')
if module_path is not None:
with prepend_syspath(dirname(abspath(self.path))):
estimator_module = importlib.import_module(module_path)
estimator = estimator_module.estimator()
if not isinstance(estimator, sklearn.base.BaseEstimator):
raise RuntimeError('estimator/pickle must load a '
'sklearn-derived Estimator')
return estimator

evalstring = self.get_value('estimator/eval')
if evalstring is not None:
got = self.get_value('estimator/eval_scope')
Expand Down