unOps can't be pickled

[guyer]

Pickling a unary operator fails

>>> import fipy as fp
>>> fp.dump.write(-fp.Variable(3.), filename="test.tar.gz")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "fipy/tools/dump.py", line 83, in write
cPickle.dump(data, fileStream, 0)
cPickle.PicklingError: Can't pickle <class 'fipy.variables.unaryOperatorVariable.unOp'>: attribute lookup fipy.variables.unaryOperatorVariable.unOp failed

This was resolved for binOps a long time ago (6500819 (binops can now be pickled)), but not for unOps

Imported from trac ticket #492, created by guyer on 01-24-2013 at 15:56, last modified: 01-25-2013 at 12:27

[guyer]

The following changes since commit 2636902f227032176c7ee4cbfbcf747e1f425919:

  Merge branch 'ticket491-rename-communicator-instances' into develop (2013-01-23 12:04:07 -0500)

are available in the git repository at:


  ssh://git@code.matforge.org/nist/fipy.git ticket492-unOps_cant_be_pickled

for you to fetch changes up to b5927d32ffc9833636e18879146cc1ec9115e3fe:

  and unOp test to test suite (2013-01-24 16:09:43 -0500)

----------------------------------------------------------------
Jonathan Guyer (3):
add test for issue #366
move `__reduce__()` method to common base class
and unOp test to test suite

 fipy/variables/binaryOperatorVariable.py | 14 +-------------
 fipy/variables/operatorVariable.py       | 12 ++++++++++++
 fipy/variables/test.py                   |  1 +
 fipy/variables/unaryOperatorVariable.py  | 34 ++++++++++++++++++++++++++++++++++
 4 files changed, 48 insertions(+), 13 deletions(-)

Trac comment by guyer on 01-24-2013 at 16:16

[wd15]

Merged with bca401e

Trac comment by wd15 on 01-25-2013 at 12:27