Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 1310 by mussadique: Complex numbers break print_mathml
http://code.google.com/p/sympy/issues/detail?id=1310
using the latest sympy version (0.6.3),
if I were to create a symbol y=sqrt(-5) and then try to display it with
either print_mathml(y) or print_gtk(y), I get this error(for print_mathml):
====================================================START CODE
In [24]: print_mathml(y)
---------------------------------------------------------------------------
exceptions.TypeError Traceback (most recent
call last)
/home/user/<ipython console>
/usr/lib/python2.4/site-packages/sympy/printing/mathml.py in
print_mathml(expr)
154 x
155 </ci>
156 </apply>
157 """
--> 158 print mathml(expr)
/usr/lib/python2.4/site-packages/sympy/printing/mathml.py in mathml(expr)
136 """Returns the MathML representation of expr"""
137 s = MathMLPrinter()
--> 138 return s.doprint(sympify(expr))
139
140 def print_mathml(expr):
/usr/lib/python2.4/site-packages/sympy/printing/mathml.py in doprint(self,
e)
15
16 def doprint(self, e):
---> 17 return self._print(e).toprettyxml()
18
19 def mathml_tag(self, e):
/usr/lib/python2.4/site-packages/sympy/printing/printer.py in _print(self,
expr, *args)
141 printmethod = '_print_' + cls.__name__
142 if hasattr(self, printmethod):
--> 143 res = getattr(self, printmethod)(expr, *args)
144 if res is None:
145 raise Exception("Printing method '%s' did
return None" % printmethod)
/usr/lib/python2.4/site-packages/sympy/printing/mathml.py in
_print_AssocOp(self, e)
130 x.appendChild(x_1)
131 for arg in e.args:
--> 132 x.appendChild(self._print(arg))
133 return x
134
/usr/lib/python2.4/site-packages/sympy/printing/printer.py in _print(self,
expr, *args)
141 printmethod = '_print_' + cls.__name__
142 if hasattr(self, printmethod):
--> 143 res = getattr(self, printmethod)(expr, *args)
144 if res is None:
145 raise Exception("Printing method '%s' did
return None" % printmethod)
/usr/lib/python2.4/site-packages/sympy/printing/mathml.py in
_print_Basic(self, e)
121 def _print_Basic(self, e):
122 x = self.dom.createElement(self.mathml_tag(e))
--> 123 for arg in e:
124 x.appendChild(self._print(arg))
125 return x
TypeError: iteration over non-sequence
=============================================== END CODE
the print_gtk error is similar.
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