Merge pull request symengine#520 from bjodah/Constant-is_Atom

Make Constant.is_Atom == True

Author: bjodah

symengine/lib/symengine_wrapper.in.pyx

@@ -1388,6 +1388,10 @@ cdef class Constant(Expr):
     def is_number(self):
         return True
 
+    @property
+    def is_Atom(self):
+        return True
+
     def _sympy_(self):
         raise Exception("Unknown Constant")
 

symengine/tests/test_number.py

@@ -97,6 +97,7 @@ def test_is_conditions():
     assert i.is_complex
 
     assert pi.is_number
+    assert pi.is_Atom
 
 
 def test_perfect_power():