diff -rupN a/src/tfpython.c b/src/tfpython.c
--- a/src/tfpython.c	2025-10-27 16:50:44.000000000 +0000
+++ b/src/tfpython.c	2026-03-29 02:42:54.570000000 +0000
@@ -201,7 +201,7 @@ static struct Value* pyvar_to_tfvar( PyO
 {
 	struct Value *rc;
 	char *cstr;
-	long int len; // Py_ssize_t len;
+	Py_ssize_t len;
 
 	// can be null if exception was thrown
 	if( !pRc ) {