prevent deletion of sales invoices if country is nepal
diff --git a/erpnext/regional/nepal/utils.py b/erpnext/regional/nepal/utils.py
new file mode 100644
index 0000000..66536ee
--- /dev/null
+++ b/erpnext/regional/nepal/utils.py
@@ -0,0 +1,18 @@
+# Copyright (c) 2018, Frappe Technologies and contributors
+# For license information, please see license.txt
+
+import frappe
+from frappe import _
+from erpnext import get_region
+
+def check_deletion_permission(doc, method):
+ region = get_region()
+ if region not in ["Nepal"]:
+ return
+ else:
+ frappe.throw(_("Deletion is not permitted for country {0}".format(region)))
+
+# don't remove this function it is used in tests
+def test_method():
+ '''test function'''
+ return 'overridden'