From 1f9a6b010a533d02ffd82ac182e4c9fada129a99 Mon Sep 17 00:00:00 2001
From: Ankush Menat <ankush@frappe.io>
Date: Thu, 7 Jul 2022 11:15:50 +0530
Subject: [PATCH] perf: add `__slots__` to most used classes (#17421)

Added slots for these classes:

- Session - Created on EACH request
- LoginManager - Created on each request
- Monitor - Created on each request if monitor is enabled (usually in
  prod setup)
---
 frappe/auth.py     | 3 +++
 frappe/monitor.py  | 2 ++
 frappe/sessions.py | 2 ++
 3 files changed, 7 insertions(+)

diff --git a/frappe/auth.py b/frappe/auth.py
index 3737681d71..455e9ee0c5 100644
--- a/frappe/auth.py
+++ b/frappe/auth.py
@@ -109,6 +109,9 @@ class HTTPRequest:
 
 
 class LoginManager:
+
+	__slots__ = ("user", "info", "full_name", "user_type", "resume")
+
 	def __init__(self):
 		self.user = None
 		self.info = None
diff --git a/frappe/monitor.py b/frappe/monitor.py
index e151944b1f..8d5391cb77 100644
--- a/frappe/monitor.py
+++ b/frappe/monitor.py
@@ -30,6 +30,8 @@ def log_file():
 
 
 class Monitor:
+	__slots__ = ("data",)
+
 	def __init__(self, transaction_type, method, kwargs):
 		try:
 			self.data = frappe._dict(
diff --git a/frappe/sessions.py b/frappe/sessions.py
index 67b58e1d89..f7c4b34470 100644
--- a/frappe/sessions.py
+++ b/frappe/sessions.py
@@ -213,6 +213,8 @@ def generate_csrf_token():
 
 
 class Session:
+	__slots__ = ("user", "device", "user_type", "full_name", "data", "time_diff", "sid")
+
 	def __init__(self, user, resume=False, full_name=None, user_type=None):
 		self.sid = cstr(
 			frappe.form_dict.get("sid") or unquote(frappe.request.cookies.get("sid", "Guest"))