not JSON serializable error when running flow on a task #477
Description
Description
I encounter the following error when running a flow (for example 7103) on a task (for example 146607).
<openml.flows.flow.OpenMLFlow object at 0x11cc43110> is not JSON serializable
Steps/Code to Reproduce
Example:
import openml
flow = openml.flows.get_flow(7103)
task = openml.tasks.get_task(146607)
run = runs.run_flow_on_task(task, flow)Expected Results
OpenMLRun object
Actual Results
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-102-f7fb112d9304> in <module>()
----> 1 run = runs.run_flow_on_task(task, flow)
/usr/local/lib/python2.7/site-packages/openml-0.7.0-py2.7.egg/openml/runs/functions.pyc in run_flow_on_task(task, flow, avoid_duplicate_runs, flow_tags, seed)
85 if avoid_duplicate_runs and flow_id:
86 flow_from_server = get_flow(flow_id)
---> 87 setup_id = setup_exists(flow_from_server, flow.model)
88 ids = _run_exists(task.task_id, setup_id)
89 if ids:
/usr/local/lib/python2.7/site-packages/openml-0.7.0-py2.7.egg/openml/setups/functions.pyc in setup_exists(flow, model)
44 raise ValueError('This should not happen!')
45
---> 46 openml_param_settings = openml.runs.OpenMLRun._parse_parameters(flow, model)
47 description = xmltodict.unparse(_to_dict(flow.flow_id,
48 openml_param_settings),
/usr/local/lib/python2.7/site-packages/openml-0.7.0-py2.7.egg/openml/runs/run.pyc in _parse_parameters(flow, model)
360 flow_dict = get_flow_dict(flow)
361 parameters = extract_parameters(flow, flow_dict, model,
--> 362 True, flow.flow_id)
363
364 return parameters
/usr/local/lib/python2.7/site-packages/openml-0.7.0-py2.7.egg/openml/runs/run.pyc in extract_parameters(_flow, _flow_dict, component_model, _main_call, main_id)
340 raise e
341 elif not isinstance(step, openml.flows.OpenMLFlow):
--> 342 raise e
343 continue
344 else:
TypeError: <openml.flows.flow.OpenMLFlow object at 0x11cc43110> is not JSON serializable
Versions
Darwin-17.5.0-x86_64-i386-64bit
('Python', '2.7.15 (default, May 28 2018, 14:20:45) \n[GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.1)]')
('NumPy', '1.13.3')
('SciPy', '1.0.0')
('Scikit-Learn', '0.18.1')
('OpenML', '0.7.0')