refactor: linting

setup.py

 #!/usr/bin/env python
 from setuptools import setup, find_packages
 
-requirements = [
-    x.strip() for x in open('requirements.txt', 'r')
-    if x.strip() != ''
-]
+requirements = [x.strip() for x in open("requirements.txt", "r") if x.strip() != ""]
 
 setup(
     name="communications-backbone",