test: remove traces of port numbers
diff --git a/test/test_iolib.py b/test/test_iolib.py
index 3dfaf50..84e3fa2 100644
--- a/test/test_iolib.py
+++ b/test/test_iolib.py
@@ -29,17 +29,8 @@
import unittest
import serial
-# trick to make that this test run under 2.6 and 3.x without modification.
-# problem is, io library on 2.6 does NOT accept type 'str' and 3.x doesn't
-# like u'nicode' strings with the prefix and it is not providing an unicode
-# function ('str' is now what 'unicode' used to be)
-if sys.version_info >= (3, 0):
- def unicode(x):
- return x
-
-
# on which port should the tests be performed:
-PORT = 0
+PORT = 'loop://'
class Test_SerialAndIO(unittest.TestCase):