T4xx fixes

T404 WONTFIX

Change-Id: I2e94fa4762615b686635b82e1843bdc1c10dabb0
diff --git a/tools/install_venv.py b/tools/install_venv.py
index 52dbe39..20dcefa 100644
--- a/tools/install_venv.py
+++ b/tools/install_venv.py
@@ -38,6 +38,8 @@
 
 
 def print_help():
+    """This prints Help."""
+
     help = """
     Tempest development environment setup is complete.