Hello there, I have the same behavior on Fedora 18 x86_64
;;; ;;; Detected access to protected memory, also kwown as 'bus or segmentation fault'. ;;; Jumping to the outermost toplevel prompt ;;; --------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-7-524b3559a41c> in <module>() ----> 1 solution=solve([(a*x+b*y)*x*y/c==Integer(1),Integer(3)*log(a + b + c) - log(Integer(27)*a*b*x*y)],x,y,solution_dict=True) /usr/lib64/python2.7/site-packages/sage/symbolic/relation.pyc in solve(f, *args, **kwds) 751 s = [] 752 --> 753 sol_list = string_to_list_of_solutions(repr(s)) 754 755 # Relaxed form suggested by Mike Hansen (#8553): /usr/lib64/python2.7/site-packages/sage/symbolic/relation.pyc in string_to_list_of_solutions(s) 456 from sage.calculus.calculus import symbolic_expression_from_maxima_string 457 v = symbolic_expression_from_maxima_string(s, equals_sub=True) --> 458 return Sequence(v, universe=Objects(), cr_str=True) 459 460 ########### /usr/lib64/python2.7/site-packages/sage/structure/sequence.pyc in Sequence(x, universe, check, immutable, cr, cr_str, use_sage_types) 298 return Sequence_generic(x, universe, check, immutable, cr, cr_str, use_sage_types) 299 else: --> 300 return Sequence_generic(x, universe, check, immutable, cr, cr_str, use_sage_types) 301 302 class Sequence_generic(sage.structure.sage_object.SageObject, list): /usr/lib64/python2.7/site-packages/sage/structure/sequence.pyc in __init__(self, x, universe, check, immutable, cr, cr_str, use_sage_types) 502 self.__universe = universe 503 if check: --> 504 x = [universe(t) for t in x] 505 list.__init__(self, x) 506 self._is_immutable = immutable TypeError: 'sage.symbolic.expression.Expression' object is not iterable -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.