Fix pep8 and placeholder

tools/generate_doc_confpy.py

@@ -181,7 +181,8 @@ def process_repositories(args, service):
                 site_name="Internal Documentation Portal",
                 logo_url="https://docs-int.otc-service.com",
             )
-        sbv_title = (service["service_title"] + "\n" + ('=' * len(service["service_title"])))
+        sbv_title = (service["service_title"] + "\n"
+                     + ('=' * len(service["service_title"])))
         context["sbv_title"] = sbv_title
         conf_py_content = conf_py_template.render(**context)
         index_sbv_content = index_sbv_template.render(**context)
@@ -192,7 +193,8 @@ def process_repositories(args, service):
             out.write(conf_py_content)
         repo_to.index.add(pathlib.Path(copy_path, "conf.py"))
 
-        if not args.overwrite_index_sbv and pathlib.Path(copy_path, "index.rst").exists():
+        if (not args.overwrite_index_sbv
+                and pathlib.Path(copy_path, "index.rst").exists()):
             logging.info("File index.rst for sbv exists. Skipping")
         else:
             with open(
@@ -201,7 +203,11 @@ def process_repositories(args, service):
                     encoding="utf-8") as out:
                 out.write(index_sbv_content)
             repo_to.index.add(pathlib.Path(copy_path, "index.rst"))
-        
+
+        placeholder_path = pathlib.Path(copy_path, "_static")
+        if not placeholder_path.exists():
+            placeholder_path.mkdir(parents=True, exist_ok=True)
+            open(pathlib.Path(placeholder_path, ".placeholder"), 'a').close()
 
     if args.update_tox:
         context = dict(docs=[])