Add flake8 config file

.circleci/config.yml

@@ -57,7 +57,7 @@ jobs:
           command: docker run app:build test
       - run:
           name: Lint Code
-          command: docker run app:build flake8 leanplum_data_export/leanplum_data_export/ leanplum_data_export/tests/ --max-line-length 100
+          command: docker run app:build flake8 leanplum_data_export/
 
   deploy:
     docker:

.flake8

@@ -0,0 +1,3 @@
+[flake8]
+max-line-length = 100
+exclude = venv/*

Makefile

@@ -24,7 +24,7 @@ clean-pyc:
 	find . -name '*~' -exec rm -f {} +
 
 lint:
-	flake8 leanplum_data_export/ tests/ --max-line-length 100
+	flake8 .
 
 test:
 	docker-compose run app test