jcrist / codegen_talk Goto Github PK

Hi Jim, I'm getting the following error in the notebook at the In[5]: print(ccode(mat_expr, assign_to=y)).

Does this look familiar?

sympy.version
'0.7.5'
numpy.version
'1.8.2'
❯❯❯ python --version
Python 2.7.6

AttributeError Traceback (most recent call last)
in ()
----> 1 print(ccode(mat_expr, assign_to=y))

/home/cekees/proteus/linux2/lib/python2.7/site-packages/sympy/printing/ccode.pyc in ccode(expr, assign_to, **settings)
277
278 """
--> 279 return CCodePrinter(settings).doprint(expr, assign_to)
280
281

/home/cekees/proteus/linux2/lib/python2.7/site-packages/sympy/printing/ccode.pyc in doprint(self, expr, assign_to)
91 lines.append("}")
92 else:
---> 93 code0 = self._doprint_a_piece(expr, assign_to)
94 lines.extend(code0)
95

/home/cekees/proteus/linux2/lib/python2.7/site-packages/sympy/printing/codeprinter.pyc in _doprint_a_piece(self, expr, assign_to)
37 # Setup loops over non-dummy indices -- all terms need these
38 if self._settings.get('contract', True):
---> 39 indices = self.get_expression_indices(expr, assign_to)
40 else:
41 indices = []

/home/cekees/proteus/linux2/lib/python2.7/site-packages/sympy/printing/codeprinter.pyc in get_expression_indices(self, expr, assign_to)
111 def get_expression_indices(self, expr, assign_to):
112 from sympy.tensor import get_indices, get_contraction_structure
--> 113 rinds, junk = get_indices(expr)
114 linds, junk = get_indices(assign_to)
115

/home/cekees/proteus/linux2/lib/python2.7/site-packages/sympy/tensor/index_methods.pyc in get_indices(expr)
235 elif expr is None:
236 return set(), {}
--> 237 elif expr.is_Atom:
238 return set(), {}
239 elif isinstance(expr, Idx):

/home/cekees/proteus/linux2/lib/python2.7/site-packages/sympy/matrices/matrices.pyc in getattr(self, attr)
3037 else:
3038 raise AttributeError(
-> 3039 "%s has no attribute %s." % (self.class.name, attr))
3040
3041 def integrate(self, *args):

AttributeError: MutableDenseMatrix has no attribute is_Atom.