diff --git a/erpnext/accounts/doctype/party_link/party_link.py b/erpnext/accounts/doctype/party_link/party_link.py
index a5421ff8c8d..fe9d8c6592c 100644
--- a/erpnext/accounts/doctype/party_link/party_link.py
+++ b/erpnext/accounts/doctype/party_link/party_link.py
@@ -5,6 +5,7 @@ import frappe
 from frappe import _
 from frappe.model.document import Document
 
+
 class PartyLink(Document):
 	def validate(self):
 		if self.primary_role not in ['Customer', 'Supplier']:
diff --git a/erpnext/accounts/doctype/party_link/test_party_link.py b/erpnext/accounts/doctype/party_link/test_party_link.py
index a3ea3959ba4..2ae338133e0 100644
--- a/erpnext/accounts/doctype/party_link/test_party_link.py
+++ b/erpnext/accounts/doctype/party_link/test_party_link.py
@@ -4,5 +4,6 @@
 # import frappe
 import unittest
 
+
 class TestPartyLink(unittest.TestCase):
 	pass
diff --git a/erpnext/patches/v13_0/delete_old_purchase_reports.py b/erpnext/patches/v13_0/delete_old_purchase_reports.py
index 57620d3e986..3cb7e120d67 100644
--- a/erpnext/patches/v13_0/delete_old_purchase_reports.py
+++ b/erpnext/patches/v13_0/delete_old_purchase_reports.py
@@ -4,8 +4,10 @@
 from __future__ import unicode_literals
 
 import frappe
+
 from erpnext.accounts.utils import check_and_delete_linked_reports
 
+
 def execute():
 	reports_to_delete = ["Requested Items To Be Ordered",
 		"Purchase Order Items To Be Received or Billed","Purchase Order Items To Be Received",
diff --git a/erpnext/patches/v13_0/delete_old_sales_reports.py b/erpnext/patches/v13_0/delete_old_sales_reports.py
index 905a42c0c4c..c9a366655ce 100644
--- a/erpnext/patches/v13_0/delete_old_sales_reports.py
+++ b/erpnext/patches/v13_0/delete_old_sales_reports.py
@@ -4,8 +4,10 @@
 from __future__ import unicode_literals
 
 import frappe
+
 from erpnext.accounts.utils import check_and_delete_linked_reports
 
+
 def execute():
 	reports_to_delete = ["Ordered Items To Be Delivered", "Ordered Items To Be Billed"]
 
diff --git a/erpnext/patches/v13_0/set_operation_time_based_on_operating_cost.py b/erpnext/patches/v13_0/set_operation_time_based_on_operating_cost.py
index 4acbdd63a00..0366d4902dc 100644
--- a/erpnext/patches/v13_0/set_operation_time_based_on_operating_cost.py
+++ b/erpnext/patches/v13_0/set_operation_time_based_on_operating_cost.py
@@ -1,5 +1,6 @@
 import frappe
 
+
 def execute():
 	frappe.reload_doc('manufacturing', 'doctype', 'bom')
 	frappe.reload_doc('manufacturing', 'doctype', 'bom_operation')
diff --git a/erpnext/regional/report/vat_audit_report/vat_audit_report.py b/erpnext/regional/report/vat_audit_report/vat_audit_report.py
index 4514bb79de5..3637bcaf439 100644
--- a/erpnext/regional/report/vat_audit_report/vat_audit_report.py
+++ b/erpnext/regional/report/vat_audit_report/vat_audit_report.py
@@ -9,6 +9,7 @@ import frappe
 from frappe import _
 from frappe.utils import formatdate, get_link_to_form
 
+
 def execute(filters=None):
 	return VATAuditReport(filters).run()