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switch from pickle/dill to cloudpickle #4858

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merged 8 commits into from
Jul 13, 2021
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Spaak
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@Spaak Spaak commented Jul 13, 2021

Fixing #4856 and (hopefully) preventing future issues with serialization, parallel sampling, etc. This PR also removes the pickle_backend parameter from pm.sample.

@twiecki @michaelosthege

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codecov bot commented Jul 13, 2021

Codecov Report

Merging #4858 (0f5578d) into main (a3ee747) will increase coverage by 0.03%.
The diff coverage is 90.90%.

Impacted file tree graph

@@            Coverage Diff             @@
##             main    #4858      +/-   ##
==========================================
+ Coverage   72.32%   72.36%   +0.03%     
==========================================
  Files          85       85              
  Lines       13884    13852      -32     
==========================================
- Hits        10042    10024      -18     
+ Misses       3842     3828      -14     
Impacted Files Coverage Δ
pymc3/distributions/distribution.py 68.48% <ø> (+3.68%) ⬆️
pymc3/util.py 64.24% <50.00%> (ø)
pymc3/parallel_sampling.py 87.20% <100.00%> (+0.49%) ⬆️
pymc3/sampling.py 85.67% <100.00%> (+0.01%) ⬆️
pymc3/step_methods/hmc/base_hmc.py 90.24% <0.00%> (-0.82%) ⬇️

@twiecki twiecki merged commit f296a5c into pymc-devs:main Jul 13, 2021
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twiecki commented Jul 13, 2021

Great stuff!

ricardoV94 pushed a commit to ricardoV94/pymc that referenced this pull request Jul 15, 2021
* use cloudpickle for serialization

* add cloudpickle to requirements

* update tests for cloudpickle

* update release notes with cloudpickle

* update conda envs with cloudpickle

* remove special case serialization for DensityDist.logp

* add pickle import back in for pickle.PickleError

* remove strict error message check in test
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3 participants