fix: cannot iterate over dict_keys
diff --git a/erpnext/assets/doctype/asset_category/asset_category.py b/erpnext/assets/doctype/asset_category/asset_category.py
index d4ea250..2178b7d 100644
--- a/erpnext/assets/doctype/asset_category/asset_category.py
+++ b/erpnext/assets/doctype/asset_category/asset_category.py
@@ -30,7 +30,7 @@
for fieldname in account_type_map.keys():
if d.get(fieldname):
selected_account = d.get(fieldname)
- key_to_match = account_type_map.get(fieldname).keys()[0] # acount_type or root_type
+ key_to_match = next(iter(account_type_map.get(fieldname))) # acount_type or root_type
selected_key_type = frappe.db.get_value('Account', selected_account, key_to_match)
expected_key_type = account_type_map[fieldname][key_to_match]