Can't pickle _tskit.TreeSequence objects?

[terhorst]

Are TreeSequence objects meant to be pickleable?

>>> import msprime as msp
>>> msp.__version__
'0.7.4'
>>> import pickle
>>> ts = msp.simulate(2)
>>> pickle.dumps(ts)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: can't pickle _tskit.TreeSequence objects

On the other hand, ts.tables can be pickled. So maybe this is intentional?

[jeromekelleher]

I think it's just an oversight --- implementing the pickle protocol for tree sequences would be easy. We can move this issue over to tskit if you'd like to see the feature.

[terhorst]

Whoops, I think I thought I was sending it there :-) I can submit a pr.

On Wed, Mar 11, 2020 at 10:20 AM Jerome Kelleher ***@***.***> wrote: I think it's just an oversight --- implementing the pickle protocol for tree sequences would be easy. We can move this issue over to tskit if you'd like to see the feature. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <https://github.com/tskit-dev/msprime/issues/918#issuecomment-597661735>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAEOHGXTPU7BGXGVQVKHATRG6MZLANCNFSM4LFWLTFA> .

-- Jonathan terhorst@gmail.com

[jeromekelleher]

Great, looking forward to the PR @terhorst!

ps. I just transferred the issue to tskit.