Renamed PyString to PyBytes
diff --git a/Modules/sha256module.c b/Modules/sha256module.c
index f310134..162a905 100644
--- a/Modules/sha256module.c
+++ b/Modules/sha256module.c
@@ -432,7 +432,7 @@
 
     SHAcopy(self, &temp);
     sha_final(digest, &temp);
-    return PyString_FromStringAndSize((const char *)digest, self->digestsize);
+    return PyBytes_FromStringAndSize((const char *)digest, self->digestsize);
 }
 
 PyDoc_STRVAR(SHA256_hexdigest__doc__,