Hi,
the problem is that your addition of "dual_matrix" is too far down in
the file. It is now defined as a global function to which one may pass a
matrix. However, you want it as a method of the Matrix class. You could
probably put it around line 3318, after the is_Identity method (and
similarly aligned!).
Best,
Tom
On 14.04.2012 15:22, Comer Duncan wrote:
Hi,
Can someone please help me get past the following issue?
I have added a new method to sympy/matrices/matrices.py to compute the
matrix dual of a given matrix. The name of the method is
dual_matrix(). I have added this method to my local copy of sympy
(test1) and have done a git add and git commit. I have also put a
test_dual_matrix function at the bottom of
sympy/matrices/tests/test_matrices.py. When I run test on the
matrices I get:
[ComerMacPro:~/sympy] comerduncan% ./bin/test
sympy/matrices/tests/test_matrices.py
============================= test process starts ==============================
executable: /usr/bin/python (2.7.1-final-0)
architecture: 64-bit
cache: yes
ground types: python
random seed: 54812667
sympy/matrices/tests/test_matrices.py[106] ...fffff.............................
....................................................................E [FAIL]
________________________________________________________________________________
____________ sympy/matrices/tests/test_matrices.py:test_dual_matrix ____________
File "/users/comerduncan/sympy/sympy/matrices/tests/test_matrices.py",
line 2221, in test_dual_matrix
assert F.dual_matrix() == Matrix(
((0,B_x,B_y,B_z),(-B_x,0,E_z,-E_y),(-B_y,-E_z,0,E_x),(-B_z,E_y,-E_x,0))
)
File "/Users/comerduncan/sympy/sympy/matrices/matrices.py", line
2953, in __getattr__
raise AttributeError("Matrix has no attribute %s." % attr)
AttributeError: Matrix has no attribute dual_matrix.
tests finished: 100 passed, 5 expected to fail, 1 exceptions, in 4.34 seconds
=
DO *NOT* COMMIT!
So, how come the new function dual_matrix is not seen? Is it the case
that when ./bin/test runs sympy/matrices/tests/test_matrices.py it
loads the system sympy rather than the local, in-directory sympy tree
and thus does not see any additional function(s) added at the end of
matrices.py? I am unsure about this, so I would appreciate some ideas
on what I can//should do.
Thanks very much.
Comer
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