[lint] fix lint

app.py

@@ -1,9 +1,11 @@
 #!/usr/bin/env python3
+"""Creatr App"""
 from flask import Flask
 
 
 app = Flask(__name__)
 
 @app.route('/')
-def hello():
+def index():
+    """Show index page"""
     return "Hello Fediverse!"

tests/conftest.py

@@ -1,13 +1,17 @@
 #!/usr/bin/env python3
+"""Build test fixture"""
+
 import pytest
 from app import app as flask_app
 
 
-@pytest.fixture
-def app():
+@pytest.fixture(name="app")
+def fixture_app():
+    """Build flask app"""
     yield flask_app
 
 
 @pytest.fixture
 def client(app):
+    """Build test client"""
     return app.test_client()

tests/test_index.py

@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
+"""Test App index"""
 
 def test_request_example(client):
+    """Test index path"""
     response = client.get("/")
     assert b"Hello Fediverse!" in response.data