Style(setup): Fix flake8 F821 undefined name `execfile` under Python 3

diff --git a/setup.py b/setup.py
index 6de1e2159e5adb0ae39b4fa32bcd5ffaa834edbb..112c2e906f3efda47e63ede1c559bece35a4ba1f 100755 (executable)
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ versionpath = join(abspath(dirname(__file__)), 'sqlconvert', '__version__.py')
 sqlconvert_version = {}
 
 if sys.version_info[:2] == (2, 7):
 sqlconvert_version = {}
 
 if sys.version_info[:2] == (2, 7):

-    execfile(versionpath, sqlconvert_version)
+    execfile(versionpath, sqlconvert_version)  # noqa: F821 'execfile' Py3

 
 elif sys.version_info >= (3, 4):
     exec(open(versionpath, 'rU').read(), sqlconvert_version)
 
 elif sys.version_info >= (3, 4):
     exec(open(versionpath, 'rU').read(), sqlconvert_version)