add a notice when run with old Python

git-svn-id: http://svn.code.sf.net/p/pyserial/code/trunk/pyserial@258 f19166aa-fa4f-0410-85c2-fa1106f25c8a

1 files changed, 10 insertions, 0 deletions

diff --git a/examples/test_iolib.py b/examples/test_iolib.py
index 2f6cd4b..e740a4c 100644
--- a/examples/test_iolib.py
+++ b/examples/test_iolib.py
@@ -27,6 +27,16 @@ On a 9 pole DSUB these are the pins (2-3) (4-6) (7-8)
 
 import unittest
 import sys
+
+if sys.version_info < (2, 6):
+    sys.stderr.write("""\
+==============================================================================
+WARNING: this test is intended for Python 2.6 and newer where the io library
+is available. This seems to be an older version of Python running.
+Continuing anyway...
+==============================================================================
+""")
+
 import io
 import serial