I'm not sure why it would only show up in Python 3, but grepping the
code shows several _entry function definitions that don't have the
expand keyword argument.
Aaron Meurer
On Sat, Jul 28, 2018 at 3:32 PM, <abrombore...@gmail.com> wrote:
> I am converting my code from python 2.7 to python 3. When I do this I get
> the following error message -
>
> Traceback (most recent call last):
> File "lin_tran_check.py", line 161, in <module>
> main()
> File "lin_tran_check.py", line 36, in main
> A = o3d.lt('A')
> File "/home/brombo/galgebra-master/galgebra/ga.py", line 522, in lt
> return lt.Lt(*kargs, **kwargs)
> File "/home/brombo/galgebra-master/galgebra/lt.py", line 214, in __init__
> self.__init__(Amat, ga=self.Ga)
> File "/home/brombo/galgebra-master/galgebra/lt.py", line 198, in __init__
> self.lt_dict = Matrix_to_dictionary(mat_rep, self.Ga.basis)
> File "/home/brombo/galgebra-master/galgebra/lt.py", line 91, in
> Matrix_to_dictionary
> dict_rep[basis[row]] += mat_rep[row,col]*basis[col]
> File
> "/usr/local/lib/python3.5/dist-packages/sympy-1.2-py3.5.egg/sympy/matrices/expressions/matexpr.py",
> line 298, in __getitem__
> return self._entry(i, j)
> File
> "/usr/local/lib/python3.5/dist-packages/sympy-1.2-py3.5.egg/sympy/matrices/expressions/transpose.py",
> line 54, in _entry
> return self.arg._entry(j, i, expand=expand)
> TypeError: _entry() got an unexpected keyword argument 'expand'
>
> In my python 3 version accessing the matrix element "mat_rep[row,col]" gives
> the above error trace. In this case the statement is the same
> in my 2.7 version as well as my 3 version, but the 2.7 version gives no
> error trace. Do you have any idea what is wrong?
>
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