Perhaps it has something to do with solve not taking into account that Le() and friends evaluate themselves to a boolean in trivial cases:
In [1]: Le(3,4) Out[1]: True But the only way to really know for sure is to debug the code. By the way, there's been some debate before on whether or not it is a good idea for Le() to be doing this, so maybe now a working implementation of an inequality solve can shed some more light on the matter. Aaron Meurer On Wed, Nov 24, 2010 at 3:12 AM, Filip Dominec <filip.domi...@gmail.com> wrote: > I am working on a new solve() routine to fix the issue discussed in my > previous post. > > However, I observed a bug (?) that sticks deep in the code. I am using > the "git clone https://matt...@github.com/mattpap/sympy-polys.git; cd > sympy-polys ; git checkout polys11" version. > > > > > In [388]: solve([Le(3,0), Assume(x,Q.real)],x,relational=False) > Out[388]: False > > In [389]: solve([Le(3,4), Assume(x,Q.real)],x,relational=False) > --------------------------------------------------------------------------- > UnboundLocalError Traceback (most recent call > last) > > /home/filip/<ipython console> in <module>() > > /home/filip/bin/sympy101118/sympy-polys/sympy/solvers/solvers.pyc in > solve(f, *symbols, **flags) > 153 > 154 if any(isinstance(fi, bool) or (fi.is_Relational and not > fi.is_Equality) for fi in f): > --> 155 return solve_poly_inequalities(f, > relational=relational) > 156 > 157 for i, fi in enumerate(f): > > /home/filip/bin/sympy101118/sympy-polys/sympy/solvers/inequalities.pyc > in solve_poly_inequalities(inequalities, relational) > 152 results[gen] = result > 153 > --> 154 if relational or not real: > 155 solution = And(*results.values()) > 156 else: > > UnboundLocalError: local variable 'real' referenced before assignment > > -- > 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. > > -- 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.
