Merge pull request #116 from mattwala/sympy-rel-global-import

Basic._richcmp_(): Make Rel import global, not inline.

Author: isuruf

symengine/lib/symengine_wrapper.pyx

@@ -462,12 +462,12 @@ cdef class Basic(object):
         return Basic._richcmp_(A, B, op)
 
     def _richcmp_(Basic A, Basic B, int op):
-        from sympy import Rel
         if (op == 2):
             return symengine.eq(deref(A.thisptr), deref(B.thisptr))
         elif (op == 3):
             return symengine.neq(deref(A.thisptr), deref(B.thisptr))
-        elif (op == 0):
+        from sympy import Rel
+        if (op == 0):
             return Rel(A, B, '<')
         elif (op == 1):
             return Rel(A, B, '<=')