PEP8 cleaning

tests/test_postgresql.py

@@ -23,6 +23,7 @@ sys.path.append(str(Path(__file__).parents[1].resolve()))
 import utils as u  # noqa: E402
 from utils_lib.apt import Apt  # noqa: E402
 
+
 def check_listen(host: str, port: int) -> bool:
     """Check if server is listening (TCP only).
 
@@ -41,6 +42,7 @@ def check_listen(host: str, port: int) -> bool:
 
     return result == 0
 
+
 def is_ha() -> bool:
     """Check wether this setup is using higlhy-available databases.
 
@@ -49,6 +51,7 @@ def is_ha() -> bool:
     """
     return check_listen("127.0.0.1", 54321)
 
+
 def get_haproxy_conf(path: str = "/etc/haproxy/haproxy.cfg") -> dict:
     """Get HAProxy configuration in a dictionary.