From 0a2ab6364c817496572ab07735ce080ded9a3b39 Mon Sep 17 00:00:00 2001
From: Raizaaa <89463672+raizasafeel@users.noreply.github.com>
Date: Wed, 31 Dec 2025 12:00:49 +0530
Subject: [PATCH] fix: added 'autoname' to reserved keywords (#35473)

* fix: added 'autoname' to reserved keywords

* fix: prevent using autoname as DocField name

- Add validation for autoname in check_invalid_fieldnames()
- Treat Python keywords as reserved fieldnames

* fix: move autoname out of reserved keywords

* fix: move python keywords out of reserved keywords

* fix: skip reserved docfield name check for 'DocType'

---------

Co-authored-by: Raiza Safeel <raizasafeel@Raizas-MacBook-Air.local>
---
 frappe/core/doctype/doctype/doctype.py | 11 +++++++++++
 frappe/model/base_document.py          |  1 +
 2 files changed, 12 insertions(+)

diff --git a/frappe/core/doctype/doctype/doctype.py b/frappe/core/doctype/doctype/doctype.py
index 22f9620ba6..77482dc8b0 100644
--- a/frappe/core/doctype/doctype/doctype.py
+++ b/frappe/core/doctype/doctype/doctype.py
@@ -1278,6 +1278,8 @@ def validate_fields(meta: Meta):
 		validate_column_name(fieldname)
 
 	def check_invalid_fieldnames(docname, fieldname):
+		RESERVED_DOCFIELD_NAMES = frozenset(("autoname",))
+
 		if fieldname in RESERVED_KEYWORDS:
 			frappe.throw(
 				_("{0}: fieldname cannot be set to reserved keyword {1}").format(
@@ -1287,6 +1289,15 @@ def validate_fields(meta: Meta):
 				title=_("Invalid Fieldname"),
 			)
 
+		if fieldname in RESERVED_DOCFIELD_NAMES and docname != "DocType":
+			frappe.throw(
+				_("{0}: fieldname cannot be set to reserved field {1} in DocType").format(
+					frappe.bold(docname),
+					frappe.bold(fieldname),
+				),
+				title=_("Invalid Fieldname"),
+			)
+
 	def check_unique_fieldname(docname, fieldname):
 		duplicates = list(
 			filter(None, map(lambda df: (df.fieldname == fieldname and str(df.idx)) or None, fields))
diff --git a/frappe/model/base_document.py b/frappe/model/base_document.py
index ebfe364b60..039fc78187 100644
--- a/frappe/model/base_document.py
+++ b/frappe/model/base_document.py
@@ -2,6 +2,7 @@
 # License: MIT. See LICENSE
 import datetime
 import json
+import keyword
 import weakref
 from types import MappingProxyType
 from typing import TYPE_CHECKING, TypeVar