Merge pull request #22 from mrluanma/patch-1

Typo.

Author: Zakaria Zajac

setup.py

@@ -1,7 +1,7 @@
 import sys
 if sys.version_info < (2, 6):
     print(sys.stderr, "{}: need Python 2.6 or later.".format(sys.argv[0]))
-    print(sys.stderror, "Your Python is {}".format(sys.version))
+    print(sys.stderr, "Your Python is {}".format(sys.version))
     sys.exit(1)
 
 from setuptools import setup, find_packages