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https://issues.apache.org/jira/browse/BEAM-8397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16956379#comment-16956379
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Valentyn Tymofieiev commented on BEAM-8397:
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Starting from IPython 6.0.0, it adds a dependency on jedi.  Following change in 
Jedi triggers this error: https://github.com/davidhalter/jedi/commit/260aef94 

> DataflowRunnerTest.test_remote_runner_display_data fails due to infinite 
> recursion during pickling.
> ---------------------------------------------------------------------------------------------------
>
>                 Key: BEAM-8397
>                 URL: https://issues.apache.org/jira/browse/BEAM-8397
>             Project: Beam
>          Issue Type: Sub-task
>          Components: sdk-py-core
>            Reporter: Valentyn Tymofieiev
>            Priority: Major
>
> `python ./setup.py test -s 
> apache_beam.runners.dataflow.dataflow_runner_test.DataflowRunnerTest.test_remote_runner_display_data`
>  passes.
> `tox -e py37-gcp` passes if Beam depends on dill==0.3.0, but fails if Beam 
> depends on dill==0.3.1.1.`python ./setup.py nosetests --tests 
> 'apache_beam/runners/dataflow/dataflow_runner_test.py:DataflowRunnerTest.test_remote_runner_display_data`
>  fails currently if run on master.
> The failure indicates infinite recursion during pickling:
> {noformat}
> test_remote_runner_display_data 
> (apache_beam.runners.dataflow.dataflow_runner_test.DataflowRunnerTest) ... 
> Fatal Python error: Cannot recover from stack overflow.
> Current thread 0x00007f9d700ed740 (most recent call first):
>   File "/usr/lib/python3.7/pickle.py", line 479 in get
>   File "/usr/lib/python3.7/pickle.py", line 497 in save
>   File "/usr/lib/python3.7/pickle.py", line 786 in save_tuple
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 638 in save_reduce
>   File 
> "/usr/local/google/home/valentyn/tmp/py37env/lib/python3.7/site-packages/dill/_dill.py",
>  line 1394 in save_function
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 882 in _batch_setitems
>   File "/usr/lib/python3.7/pickle.py", line 856 in save_dict
>   File 
> "/usr/local/google/home/valentyn/tmp/py37env/lib/python3.7/site-packages/dill/_dill.py",
>  line 910 in save_module_dict
>   File 
> "/usr/local/google/home/valentyn/projects/beam/clean/beam/sdks/python/apache_beam/internal/pickler.py",
>  line 198 in new_save_module_dict
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 786 in save_tuple
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 638 in save_reduce
>   File 
> "/usr/local/google/home/valentyn/projects/beam/clean/beam/sdks/python/apache_beam/internal/pickler.py",
>  line 114 in wrapper
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 771 in save_tuple
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 638 in save_reduce
>   File 
> "/usr/local/google/home/valentyn/tmp/py37env/lib/python3.7/site-packages/dill/_dill.py",
>  line 1137 in save_cell
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 771 in save_tuple
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 786 in save_tuple
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 638 in save_reduce
>   File 
> "/usr/local/google/home/valentyn/tmp/py37env/lib/python3.7/site-packages/dill/_dill.py",
>  line 1394 in save_function
>   File "/usr/lib/python3.7/pickle.py", line 504 in save
>   File "/usr/lib/python3.7/pickle.py", line 882 in _batch_setitems
>   File "/usr/lib/python3.7/pickle.py", line 856 in save_dict
>   File 
> "/usr/local/google/home/valentyn/tmp/py37env/lib/python3.7/site-packages/dill/_dill.py",
>  line 910 in save_module_dict
>   File 
> "/usr/local/google/home/valentyn/projects/beam/clean/beam/sdks/python/apache_beam/internal/pickler.py",
>  line 198 in new_save_module_dict
> ...
> {noformat}
> cc: [~lazylynx]



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