diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 3af7b24..b2188e1 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -10,7 +10,6 @@
 from frappe.model.utils import get_fetch_values
 from frappe.utils import (
 	add_days,
-	add_months,
 	cint,
 	cstr,
 	flt,
diff --git a/erpnext/assets/doctype/asset_capitalization/asset_capitalization.py b/erpnext/assets/doctype/asset_capitalization/asset_capitalization.py
index e50ddfa..856ace2 100644
--- a/erpnext/assets/doctype/asset_capitalization/asset_capitalization.py
+++ b/erpnext/assets/doctype/asset_capitalization/asset_capitalization.py
@@ -5,8 +5,15 @@
 # import erpnext
 from frappe import _
 from erpnext.controllers.stock_controller import StockController
-from frappe.utils import cint, flt
-from erpnext.stock.get_item_details import get_item_warehouse, get_default_expense_account, get_default_cost_center
+from frappe.utils import (
+	cint,
+	flt
+)
+from erpnext.stock.get_item_details import (
+	get_item_warehouse,
+	get_default_expense_account,
+	get_default_cost_center
+)
 from erpnext.stock.doctype.item.item import get_item_defaults
 from erpnext.setup.doctype.item_group.item_group import get_item_group_defaults
 from erpnext.setup.doctype.brand.brand import get_brand_defaults
@@ -15,8 +22,11 @@
 from erpnext.assets.doctype.asset_category.asset_category import get_asset_category_account
 from erpnext.assets.doctype.asset_value_adjustment.asset_value_adjustment import get_current_asset_value
 from erpnext.stock import get_warehouse_account_map
-from erpnext.assets.doctype.asset.depreciation import get_gl_entries_on_asset_disposal, get_gl_entries_on_asset_regain,\
+from erpnext.assets.doctype.asset.depreciation import (
+	get_gl_entries_on_asset_disposal,
+	get_gl_entries_on_asset_regain,
 	get_value_after_depreciation_on_disposal_date
+)
 from six import string_types
 import json