Are there plans for pickle support?

[cdiener]

Hi,

just noticed that symengine expressions can not be pickled.

In [1]: from symengine import *

In [2]: import pickle

In [3]: x, y = var("x, y")

In [4]: pickle.dumps(x + y)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-4-134907157bd4> in <module>()
----> 1 pickle.dumps(x + y)

TypeError: can't pickle Add objects

Are there any future plans to support that?

[isuruf]

Fixed in #377