diff --git a/plugin_manager.py b/plugin_manager.py
index 6c3d3c8..3cf728d 100644
--- a/plugin_manager.py
+++ b/plugin_manager.py
@@ -41,7 +41,9 @@ HEADERS = {
     "User-Agent": _env["user_agent_string"],
 }
 PLUGIN_DIRECTORY = _env["python_directory_user"]
-_regexp_friendly_class_name_shortcut = lambda string: string.replace(".", "\.")
+def _regexp_friendly_class_name_shortcut(string): return string.replace(".", "\.")
+
+
 REGEXP = {
     "plugin_api_version": re.compile(b"(?<=ba_meta require api )(.*)"),
     "plugin_entry_points": re.compile(