More comments in code

app/paths/errors.py

@@ -20,6 +20,7 @@ class ErrorsPaths(Paths):
 
     def add_paths(self) -> None:
 
+        # For each HTTP code specified above
         for code in codes:
             self.add_handler(code)
     
@@ -31,14 +32,19 @@ class ErrorsPaths(Paths):
             code (int): HTTP error code
         """
 
+        # Jinja template file name
+        # e.g. 404.html for 404 code
         file = Path(common.templates_dir) / f'{code}.html'
 
+        # Exit from the function
+        # if the template does not exist
         if not file.exists():
             return
 
         @self.app.exception_handler(code)
         async def handler(req: Request, exc: HTTPException) -> Response:
 
+            # Respond with the template
             return respond.with_tmpl(
                 f'{code}.html',
                 code=code,