Can't run tutorials locally #272
Description
Running Pydra version I think 0.6 but it says 0+unknown, I installed with pip install pydra. Running in a singularity image on cent OS. pydra-ml is working fine so I think it is installed correctly.
I was trying to use pydra to find umap hyperparameters but can't get splitters to work and the tutorials don't work locally. It hits a lot of RuntimeError: This event loop is already running Maybe things have been updated a lot since whenever the tutorial was made.
example from tutorial 3:
import pydra
@pydra.mark.task
def add_two(x):
return x + 2
task1 = add_two(x=[1, 2, 3])
task1.split("x")
task1()
task1.result()
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call last)
<ipython-input-7-06d1102645a1> in <module>
----> 1 task1()
2 task1.result()
~/.local/lib/python3.7/site-packages/pydra/engine/core.py in __call__(self, submitter, plugin, rerun, **kwargs)
356 if submitter:
357 with submitter as sub:
--> 358 res = sub(self)
359 else:
360 if is_workflow(self):
~/.local/lib/python3.7/site-packages/pydra/engine/submitter.py in __call__(self, runnable, cache_locations, rerun)
57 self.loop.run_until_complete(self.submit_workflow(runnable, rerun=rerun))
58 else:
---> 59 self.loop.run_until_complete(self.submit(runnable, wait=True, rerun=rerun))
60 if is_workflow(runnable):
61 # resetting all connections with LazyFields
/opt/miniconda-latest/lib/python3.7/asyncio/base_events.py in run_until_complete(self, future)
568 future.add_done_callback(_run_until_complete_cb)
569 try:
--> 570 self.run_forever()
571 except:
572 if new_task and future.done() and not future.cancelled():
/opt/miniconda-latest/lib/python3.7/asyncio/base_events.py in run_forever(self)
523 self._check_closed()
524 if self.is_running():
--> 525 raise RuntimeError('This event loop is already running')
526 if events._get_running_loop() is not None:
527 raise RuntimeError(
RuntimeError: This event loop is already running
-->