diff --git a/erpnext/accounts/dashboard_chart_source/account_balance_timeline/account_balance_timeline.js b/erpnext/accounts/dashboard_chart_source/account_balance_timeline/account_balance_timeline.js
index c9a046f..3d0eacc 100644
--- a/erpnext/accounts/dashboard_chart_source/account_balance_timeline/account_balance_timeline.js
+++ b/erpnext/accounts/dashboard_chart_source/account_balance_timeline/account_balance_timeline.js
@@ -1,44 +1,44 @@
 frappe.dashboard_chart_sources["Account Balance Timeline"] = {
-    method_path: "erpnext.accounts.dashboard_chart_source.account_balance_timeline.account_balance_timeline.get",
-    filters: [
-        {
-            fieldname: "company",
-            label: __("Company"),
-            fieldtype: "Link",
-            options: "Company",
-            default: frappe.defaults.get_user_default("Company"),
-            reqd: 1
-        },
-        {
-            fieldname: "account",
-            label: __("Account"),
-            fieldtype: "Link",
-            options: "Account",
-            reqd: 1
-        },
-        {
-            fieldname: "timespan",
-            label: __("Period"),
-            fieldtype: "Select",
-            options: [
-                {value: "Last Year", label: __("Last Year")},
-                {value: "Last Quarter", label: __("Last Quarter")},
-                {value: "Last Month", label: __("Last Month")},
-                {value: "Last Week", label: __("Last Week")}
-            ],
-            reqd: 1
-        },
-        {
-            fieldname: "timegrain",
-            label: __("Periodicity"),
-            fieldtype: "Select",
-            options: [
-                {value: "Quarterly", label: __("Quarterly")},
-                {value: "Monthly", label: __("Monthly")},
-                {value: "Weekly", label: __("Weekly")},
-                {value: "Daily", label: __("Daily")}
-            ],
-            reqd: 1
-        },
-    ]
+	method_path: "erpnext.accounts.dashboard_chart_source.account_balance_timeline.account_balance_timeline.get",
+	filters: [
+		{
+			fieldname: "company",
+			label: __("Company"),
+			fieldtype: "Link",
+			options: "Company",
+			default: frappe.defaults.get_user_default("Company"),
+			reqd: 1
+		},
+		{
+			fieldname: "account",
+			label: __("Account"),
+			fieldtype: "Link",
+			options: "Account",
+			reqd: 1
+		},
+		{
+			fieldname: "timespan",
+			label: __("Period"),
+			fieldtype: "Select",
+			options: [
+				{value: "Last Year", label: __("Last Year")},
+				{value: "Last Quarter", label: __("Last Quarter")},
+				{value: "Last Month", label: __("Last Month")},
+				{value: "Last Week", label: __("Last Week")}
+			],
+			reqd: 1
+		},
+		{
+			fieldname: "timegrain",
+			label: __("Periodicity"),
+			fieldtype: "Select",
+			options: [
+				{value: "Quarterly", label: __("Quarterly")},
+				{value: "Monthly", label: __("Monthly")},
+				{value: "Weekly", label: __("Weekly")},
+				{value: "Daily", label: __("Daily")}
+			],
+			reqd: 1
+		},
+	]
 };
\ No newline at end of file
diff --git a/erpnext/accounts/dashboard_chart_source/account_balance_timeline/account_balance_timeline.py b/erpnext/accounts/dashboard_chart_source/account_balance_timeline/account_balance_timeline.py
index c2c2423..f98a236 100644
--- a/erpnext/accounts/dashboard_chart_source/account_balance_timeline/account_balance_timeline.py
+++ b/erpnext/accounts/dashboard_chart_source/account_balance_timeline/account_balance_timeline.py
@@ -4,7 +4,6 @@
 from __future__ import unicode_literals
 from itertools import groupby
 from operator import itemgetter
-import json
 import frappe
 from frappe.core.page.dashboard.dashboard import cache_source
 from frappe.utils import add_to_date, date_diff, getdate, nowdate