The canonicalize() function uses tuple(set()) to try to get a canonical ordering. But apparently in Python 2.7, this ordering isn't always the same on the same line in the same session. I think it should just compare sets directly.
Aaron Meurer On Jul 18, 4:50 pm, "Aaron S. Meurer" <asmeu...@gmail.com> wrote: > I bisected it down to bf301ae59e0943496b2e859341fc9c5677db1b64. Looking > deeper, I get: > > In [20]: i = canonicalize(M.eigenvects()) > In [21]: j = canonicalize( > > > [( 2, 1, [Matrix([R(2,3), R(1,3), 1])]), > > > (-1, 1, [Matrix([-1, 1, 0])]), > > > ( 0, 1, [Matrix([ 0,-1, 1])])]) > > In [25]: i > ⎛⎛0, 1, ⎛⎡0 ⎤,⎞⎞, ⎛-1, 1, ⎛⎡-1⎤,⎞⎞, ⎛2, 1, ⎛⎡2/3⎤,⎞⎞⎞⎜⎜ ⎜⎢ ⎥ ⎟⎟ ⎜ > ⎜⎢ ⎥ ⎟⎟ ⎜ ⎜⎢ ⎥ ⎟⎟⎟ > ⎜⎜ ⎜⎢-1⎥ ⎟⎟ ⎜ ⎜⎢1 ⎥ ⎟⎟ ⎜ ⎜⎢1/3⎥ ⎟⎟⎟⎜⎜ ⎜⎢ ⎥ ⎟⎟ ⎜ > ⎜⎢ ⎥ ⎟⎟ ⎜ ⎜⎢ ⎥ ⎟⎟⎟ > ⎝⎝ ⎝⎣1 ⎦ ⎠⎠ ⎝ ⎝⎣0 ⎦ ⎠⎠ ⎝ ⎝⎣ 1 ⎦ ⎠⎠⎠ > > In [26]: j > ⎛⎛2, 1, ⎛⎡2/3⎤,⎞⎞, ⎛0, 1, ⎛⎡0 ⎤,⎞⎞, ⎛-1, 1, ⎛⎡-1⎤,⎞⎞⎞ > ⎜⎜ ⎜⎢ ⎥ ⎟⎟ ⎜ ⎜⎢ ⎥ ⎟⎟ ⎜ ⎜⎢ ⎥ ⎟⎟⎟ > ⎜⎜ ⎜⎢1/3⎥ ⎟⎟ ⎜ ⎜⎢-1⎥ ⎟⎟ ⎜ ⎜⎢1 ⎥ ⎟⎟⎟ > ⎜⎜ ⎜⎢ ⎥ ⎟⎟ ⎜ ⎜⎢ ⎥ ⎟⎟ ⎜ ⎜⎢ ⎥ ⎟⎟⎟ > ⎝⎝ ⎝⎣ 1 ⎦ ⎠⎠ ⎝ ⎝⎣1 ⎦ ⎠⎠ ⎝ ⎝⎣0 ⎦ ⎠⎠⎠ > > It looks like it only fails in Python 2.7, so that must be the problem. > > Also, there are a ton of failures in Python 2.4, due to you not importing > any/all in a few files. > > Aaron Meurer > On Jul 18, 2010, at 5:34 AM, smichr wrote: > > > > > > > On Jul 18, 12:19 am, "Aaron S. Meurer" <asmeu...@gmail.com> wrote: > >> Testing what is the latest version (1d6bd1d), I get this failure: > > >> File > >> "/users/aaronmeurer/documents/python/sympy/sympy/sympy/matrices/tests/test_ > >> matrices.py", line 489, in test_eigen > >> ( 0, 1, [Matrix([ 0,-1, 1])])]) > >> AssertionError > > > Same commit here passes without problems under Windows and under the > > 64-bit Linux. -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sy...@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
