diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 000000000..94a25f7f4
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index 8b3e1cc83..5fa0a6913 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,20 @@
-language: php
-php:
-  - 5.5
-  - 5.4
-  - hhvm
-script: phpunit Test.php
+language: python
+python:
+    - 3.6
+notifications:
+    email: false
+
+before_install:
+    - sudo apt-get update
+    - sudo apt-get -y install python-pip pyflakes
+    - sudo pip install --upgrade pip
+    - pip install --upgrade pip
+    - pip install pep8
+    - pip install autopep8
+
+script:
+    # Run pep8 on all .py files in all subfolders
+    # (I ignore "E402: module level import not at top of file"
+    # because of use case sys.path.append('..'); import <module>)
+    - find . -name \*.py -exec pep8 --ignore=E402 {} +
+    - find . -name \*.py -exec pyflakes {} +
diff --git a/Test.php b/Test.php
deleted file mode 100644
index 4b44aa0f9..000000000
--- a/Test.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-class Test extends PHPUnit_Framework_TestCase
-{
-	public function testOnePlusOne() {
-		$this->assertEquals(1+1,1);
-  	}
-}
-
-?>
diff --git a/test.py b/test.py
new file mode 100644
index 000000000..6eb9d4d47
--- /dev/null
+++ b/test.py
@@ -0,0 +1,4 @@
+import numpy as np
+
+# hoge
+np.random.seed(42)