diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
new file mode 100644
index 0000000..718696b
--- /dev/null
+++ b/.github/workflows/pythonpackage.yml
@@ -0,0 +1,29 @@
+name: Python package
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: [3.6, 3.7, 3.8]
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+      - name: Lint with flake8
+        run: |
+          make install_test format git-diff-check lint
+      - name: Test
+        run: |
+          make
diff --git a/.isort.cfg b/.isort.cfg
new file mode 100644
index 0000000..d047cd9
--- /dev/null
+++ b/.isort.cfg
@@ -0,0 +1,10 @@
+[settings]
+line_length=79
+known_first_party=lml, pyexcel
+known_third_party=nose
+indent='    '
+multi_line_output=3
+length_sort=1
+default_section=FIRSTPARTY
+no_lines_before=LOCALFOLDER
+sections=FUTURE,STDLIB,FIRSTPARTY,THIRDPARTY,LOCALFOLDER
diff --git a/.moban.d/custom_travis.yml.jj2 b/.moban.d/custom_travis.yml.jj2
index 73b434a..9a18ae8 100644
--- a/.moban.d/custom_travis.yml.jj2
+++ b/.moban.d/custom_travis.yml.jj2
@@ -1,9 +1,7 @@
 {% extends "travis.yml.jj2" %}
 {%block extra_matrix %}
-matrix:
-  include:
-    - python: 3.6
-      env: MINREQ=1
+env:
+  - MINREQ=1
 {%endblock%}
 {%block custom_python_versions%}
 python:
diff --git a/.travis.yml b/.travis.yml
index 1012eba..208ab50 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,10 +7,8 @@ python:
   - 3.8
   - 3.7
   - 3.6
-matrix:
-  include:
-    - python: 3.6
-      env: MINREQ=1
+env:
+  - MINREQ=1
 
 stages:
   - lint
diff --git a/Makefile b/Makefile
index 48ac0a6..23f6e23 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,9 @@ all: test
 test:
 	bash test.sh
 
+install_test:
+	pip install -r tests/requirements.txt
+
 document:
 	sphinx-autogen -o docs/source/generated/ docs/source/*.rst
 	sphinx-build -b html docs/source/ docs/build/
@@ -15,4 +18,6 @@ format:
 lint:
 	bash lint.sh
 
+git-diff-check:
+	git diff --exit-code