From a3682e1bd583c98071b3679800705e92ad5ee214 Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Sat, 13 Jan 2024 04:56:16 -0500
Subject: [PATCH] retain compatibility with python 2.x

---
 examples/PACKAGES/cgdna/util/generate.py        | 4 ++++
 examples/PACKAGES/cgdna/util/generate_simple.py | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/examples/PACKAGES/cgdna/util/generate.py b/examples/PACKAGES/cgdna/util/generate.py
index 8af2ca3736..e85661abb1 100644
--- a/examples/PACKAGES/cgdna/util/generate.py
+++ b/examples/PACKAGES/cgdna/util/generate.py
@@ -22,6 +22,10 @@
 """
 Import basic modules
 """
+
+# for python2/3 compatibility
+from __future__ import print_function
+
 import sys, os, timeit
 
 from timeit import default_timer as timer
diff --git a/examples/PACKAGES/cgdna/util/generate_simple.py b/examples/PACKAGES/cgdna/util/generate_simple.py
index dd1a1aa892..7702bfc7f5 100644
--- a/examples/PACKAGES/cgdna/util/generate_simple.py
+++ b/examples/PACKAGES/cgdna/util/generate_simple.py
@@ -1,5 +1,8 @@
 # Setup tool for oxDNA input in LAMMPS format.
 
+# for python2/3 compatibility
+from __future__ import print_function
+
 import math,numpy as np,sys,os
 
 # system size