diff --git a/Makefile b/Makefile
index 679b2e0..a975caf 100644
--- a/Makefile
+++ b/Makefile
@@ -12,5 +12,8 @@ examples: reqs
 docs:
 	echo "NYI"
 
-test:
+test: lint
 	py.test
+
+lint:
+	flake8 .
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 8534d76..53c5306 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -2,4 +2,5 @@
 
 -e .
 
+flake8==3.5.0
 pytest==3.6.4
diff --git a/ethics_checklist/ethics_checklist.py b/ethics_checklist/ethics_checklist.py
index 872c3dc..132f2d3 100644
--- a/ethics_checklist/ethics_checklist.py
+++ b/ethics_checklist/ethics_checklist.py
@@ -4,7 +4,7 @@
 
 import xerox
 
-from .parser import Checklist, Section
+from .parser import Checklist
 from .formats import FORMATS, EXTENSIONS
 
 DEFAULT_CHECKLIST = Path(__file__).parent.parent / 'checklist.yml'
@@ -14,7 +14,8 @@
 
 @click.command()
 @click.option('--checklist', default=None, type=click.Path(exists=True), help='Override checklist file.')
-@click.option('--format', default=None, type=str, help='Output format. Default is "markdown". File extesion used if --output is passed.')
+@click.option('--format', default=None, type=str, help='Output format. Default is "markdown". \
+                                                        File extesion used if --output is passed.')
 @click.option('--output', default=None, type=click.Path(), help='Output file path.')
 @click.option('--clipboard', is_flag=True, default=False, help='Whether or not to output to clipboard.')
 @click.option('--overwrite', is_flag=True, default=False, help='Overwrite output file if it exists. Default is False.')
diff --git a/setup.py b/setup.py
index 8c41dd7..c89d63f 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+import setuptools
 from setuptools import setup
 
 setup(
@@ -9,16 +10,16 @@
     author="DrivenData",
     author_email="info@drivendata.org",
 
-    description = 'Data Science Ethics Checklist',
+    description='Data Science Ethics Checklist',
     long_description=open('README.md').read(),
 
-    license = 'MIT',
+    license='MIT',
     packages=setuptools.find_packages(),
 
     install_requires=[],
 
-    entry_points = {
-        'console_scripts':[ 
+    entry_points={
+        'console_scripts': [
             'ethics-checklist=ethics_checklist.ethics_checklist:main',
         ]
     },
diff --git a/tests/test_formats.py b/tests/test_formats.py
index b541017..6c11b08 100644
--- a/tests/test_formats.py
+++ b/tests/test_formats.py
@@ -71,8 +71,8 @@ def test_jupyter(checklist, tmpdir):
     known_good = ({'cell_type': 'markdown',
                   'metadata': {},
                    'source': ['# My Checklist\n',
-                               '\n',
-                               '## Section 1\n',
+                              '\n',
+                              '## Section 1\n',
                               '------\n',
                               ' - [ ] first\n',
                               ' - [ ] second\n',
diff --git a/tests/test_parser.py b/tests/test_parser.py
index b2968bf..ccee6db 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -1,4 +1,4 @@
-from ethics_checklist.parser import Checklist, Section
+from ethics_checklist.parser import Checklist
 
 
 def test_checklist():
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..791f075
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,2 @@
+[flake8]
+max-line-length = 119