diff --git a/listtocommaseparated.py2 b/listtocommaseparated.py2
new file mode 100644
index 0000000..4a8c693
--- /dev/null
+++ b/listtocommaseparated.py2
@@ -0,0 +1,13 @@
+from __future__ import print_function
+
+data = [2, 'hello', 3, 3.4]
+
+"""print without creating the whole string"""
+print(*data, sep=',')
+
+"""the print function and the StringIO object"""
+from cStringIO import StringIO
+
+out = StringIO()
+print(*data, sep=',', end='', file=out)
+print(out.getvalue())
diff --git a/listtocommaseparated.py3 b/listtocommaseparated.py3
new file mode 100644
index 0000000..8a4824e
--- /dev/null
+++ b/listtocommaseparated.py3
@@ -0,0 +1,11 @@
+data = [2, 'hello', 3, 3.4]
+
+"""print without creating the whole string"""
+print(*data, sep=',')
+
+"""the print function and the StringIO object"""
+from io import StringIO
+
+out = StringIO()
+print(*data, sep=',', end='', file=out)
+print(out.getvalue())