Minor pylint fixes to examples and tests

Author: boltronics

{{cookiecutter.package_name}}/examples/quickstart.py

@@ -1,12 +1,14 @@
-"""
+"""Quickstart example
+
 This example script imports the {{cookiecutter.package_name}} package and
 prints out the version.
 """
 
 import {{cookiecutter.package_name}}
 
 
-def main():
+def main() -> None:
+    """Begin execution"""
     print(f"{{cookiecutter.package_name}} version: {% raw -%}
       {
     {%- endraw %}{{cookiecutter.package_name}}.__version__{% raw -%}

{{cookiecutter.package_name}}/tests/test_examples.py

@@ -25,7 +25,7 @@ class ExamplesTestCase(unittest.TestCase):
     in a subprocess.
     """
 
-    def run_in_venv(self, filepath, timeout=5.0, **kwargs):
+    def run_in_venv(self, filepath: str, timeout = 5.0, **kwargs) -> bool:
         """Run a Python script in a virtual env in a subprocess.
 
         filepath references must be relative to the repo root directory.

{{cookiecutter.package_name}}/tests/test_version.py

@@ -1,3 +1,5 @@
+"""Version unit tests"""
+
 import unittest
 
 import {{cookiecutter.package_name}}
@@ -6,7 +8,7 @@
 class VersionTestCase(unittest.TestCase):
     """Version tests"""
 
-    def test_version(self):
+    def test_version(self) -> None:
         """check {{cookiecutter.package_name}} exposes a version attribute"""
         self.assertTrue(hasattr({{cookiecutter.package_name}}, "__version__"))
         self.assertIsInstance({{cookiecutter.package_name}}.__version__, str)