--- a/linters/flake8.yml	Sat Jul 30 13:40:27 2016 +0800
+++ b/linters/flake8.yml	Sat Jul 30 13:42:46 2016 +0800
@@ -1,6 +1,9 @@
+vars:
+  python_version: 2
+
 setup:
-  - ['virtualenv', '--python=python2', '../venv2']
-  - ['../venv2/bin/pip', 'install', 'flake8', 'pep8-naming']
+  - ['virtualenv', '--python=python%(python_version)s', '../venv%(python_version)s']
+  - ['../venv%(python_version)s/bin/pip', 'install', 'flake8', 'pep8-naming']
 
-exec: ['../venv2/bin/flake8']
+exec: ['../venv%(python_version)s/bin/flake8']
 version: ['--version']