GNU Octave, version 4.2.1
Copyright (C) 2017 John W. Eaton and others.
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>> pkg load symbolic
>> syms x
OctSymPy v2.6.0: this is free software without warranty, see source.
Initializing communication with SymPy using a popen2() pipe.
Some output from the Python subprocess (pid 9436) might appear next.
Python 2.7 (r27:82525, Jul  4 2010, 07:43:08) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> >>>
A =
{
  [1,1] =
Communication established.

  [1,2] =
1.1.1

  [1,3] =
2.7 (r27:82525, Jul  4 2010, 07:43:08) [MSC v.1500 64 bit (AMD64)]

}
out = <output_block>
<list>
<item>
<f>
1003
</f>
<f>
Communication established.
</f>
</item>
<item>
<f>
1003
</f>
<f>
1.1.1
</f>
</item>
<item>
<f>
1003
</f>
<f>
2.7 (r27:82525, Jul  4 2010, 07:43:08) [MSC v.1500 64 bit (AMD64)]
</f>
</item>
</list>
</output_block>
Closing the Python pipe...
error: ipc_popen2: something unexpected has gone wrong in starting python
error: called from
    python_ipc_popen2 at line 138 column 7
    python_ipc_driver at line 59 column 13
    python_cmd at line 164 column 9
    valid_sym_assumptions at line 38 column 10
    assumptions at line 82 column 7
    syms at line 97 column 13
>>