From 5524a47abce2d10faa8e45218877adcb1b7ad005 Mon Sep 17 00:00:00 2001
From: rht <rhtbot@protonmail.com>
Date: Thu, 20 Dec 2018 06:31:20 +0000
Subject: [PATCH] Travis: Do F401 check before running the tests

---
 .travis.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index a0abc656a..d79595792 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -41,11 +41,12 @@ branches:
     - master
 
 install:
-  - pip install -U pip nose coveralls coverage numpy scipy pandas numba sympy ipython statsmodels
+  - pip install -U pip nose coveralls coverage numpy scipy pandas numba sympy ipython statsmodels flake8
   - pip install tables
   - python setup.py install
 
 script:
+  - flake8 --select F401 quantecon
   - nosetests --with-coverage -a "!slow" --cover-package=quantecon
 
 after_success: