Avoid comparing arbitrary type string representations for equality and instead check for the correct instance type first.

1 files changed, 2 insertions, 2 deletions

diff --git a/Cython/Compiler/PyrexTypes.py b/Cython/Compiler/PyrexTypes.py
index 572e25ee7..bdfd6b287 100644
--- a/Cython/Compiler/PyrexTypes.py
+++ b/Cython/Compiler/PyrexTypes.py
@@ -1508,11 +1508,11 @@ class PythranExpr(CType):
 
     def __eq__(self, other):
         """Equality operation for PythranExpr using the str representation"""
-        return str(self) == str(other)
+        return isinstance(other, PythranExpr) and self.pythran_type == other.pythran_type
 
     def __hash__(self):
         """Hash function using the str representation"""
-        return hash(str(self))
+        return hash(self.pythran_type)
 
 
 class CConstType(BaseType):