Yes, as I mentioned, it was fixed only in the development version. You can see what version you have by
import sympy print sympy.__version__ If you want to run the development version, read https://github.com/sympy/sympy/wiki/Getting-the-bleeding-edge. Aaron Meurer On Wed, Apr 3, 2013 at 11:58 PM, ThanhVu Nguyen <[email protected]> wrote: > l is a variable which is not assigned to any value > In [90]: from sympy.abc import l,u > > In [91]: (l<=0).subs({l:oo}) > Out[91]: True > > In [92]: (l<=0).xreplace({l:oo}) > Out[92]: True > > My sympy is the latest "stable" one (how do I check the exact version number > anyway?) but not the development version. Perhaps this bug has been fixed > in the development branch ? > > > > On Wednesday, April 3, 2013 11:44:13 PM UTC-6, smichr wrote: >> >> Make sure sympy is up to date. I get (with the development version): >> >> >>> (l<=0) >> l <= 0 >> >>> _.subs(l,oo) >> False >> >>> (l<=0).subs({l:oo}) >> False >> >> If it is current, check your value of `l` -- maybe it is -1 or something. >> There are some IOs that are missing and I'm not sure what may have happened >> in them. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sympy?hl=en-US. > For more options, visit https://groups.google.com/groups/opt_out. > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
