Fix flake8 of py2.py

Author: Flamefire

easybuild/tools/py2vs3/py2.py

@@ -43,7 +43,7 @@
 from urllib2 import HTTPError, HTTPSHandler, Request, URLError, build_opener, urlopen  # noqa
 
 # reload function (built-in in Python 2)
-reload = reload
+reload = reload  # noqa: F821
 
 # string type that can be used in 'isinstance' calls
 string_type = basestring