2. Traceback (most recent call last):

 "gp_symbreg.py", line 51, in <module>
toolbox.register("lambdify", gp.lambdify, pset=pset)
AttributeError: 'module' object has no attribute 'lambdify
Traceback (most recent call last):


 "/Users/ksachdeva/Desktop/Dev/exp/nniexp/env/lib/python3.7/site-packages/nni/msg_dispatcher_base.py", line 102, in command_queue_worker

self.process_command(command, data)


 "/Users/ksachdeva/Desktop/Dev/exp/nniexp/env/lib/python3.7/site-packages/nni/msg_dispatcher_base.py", line 160, in process_command

command_handlers[command](data)


 "/Users/ksachdeva/Desktop/Dev/exp/nniexp/env/lib/python3.7/site-packages/nni/msg_dispatcher.py", line 138, in handle_report_metric_data

self._handle_final_metric_data(data)


 "/Users/ksachdeva/Desktop/Dev/exp/nniexp/env/lib/python3.7/site-packages/nni/msg_dispatcher.py", line 182, in _handle_final_metric_data

self.tuner.receive_trial_result(id_, _trial_params[id_], value)


 "/Users/ksachdeva/Desktop/Dev/exp/nniexp/env/lib/python3.7/site-packages/nni/hyperopt_tuner/hyperopt_tuner.py", line 384, in receive_trial_result

trials.insert_trial_docs([trial])


 "/Users/ksachdeva/Desktop/Dev/exp/nniexp/env/lib/python3.7/site-packages/hyperopt/base.py", line 435, in insert_trial_docs

for doc in docs]


 "/Users/ksachdeva/Desktop/Dev/exp/nniexp/env/lib/python3.7/site-packages/hyperopt/base.py", line 435, in <listcomp>

for doc in docs]


 "/Users/ksachdeva/Desktop/Dev/exp/nniexp/env/lib/python3.7/site-packages/hyperopt/base.py", line 399, in assert_valid_trial

bson.BSON.encode(trial)
AttributeError: module 'bson' has no attribute 'BSON'
