fix: linter and sider issues
diff --git a/erpnext/hr/doctype/expense_claim/test_expense_claim.py b/erpnext/hr/doctype/expense_claim/test_expense_claim.py
index df3a81d..1c5b69b 100644
--- a/erpnext/hr/doctype/expense_claim/test_expense_claim.py
+++ b/erpnext/hr/doctype/expense_claim/test_expense_claim.py
@@ -95,12 +95,12 @@
 	def test_rejected_expense_claim(self):
 		payable_account = get_payable_account(company_name)
 		expense_claim = frappe.get_doc({
-			 "doctype": "Expense Claim",
-			 "employee": "_T-Employee-00001",
-			 "payable_account": payable_account,
-			 "approval_status": "Rejected",
-			 "expenses":
-			 	[{ "expense_type": "Travel", "default_account": "Travel Expenses - _TC4", "amount": 300, "sanctioned_amount": 200 }]
+			"doctype": "Expense Claim",
+			"employee": "_T-Employee-00001",
+			"payable_account": payable_account,
+			"approval_status": "Rejected",
+			"expenses":
+				[{ "expense_type": "Travel", "default_account": "Travel Expenses - _TC4", "amount": 300, "sanctioned_amount": 200 }]
 		})
 		expense_claim.submit()
 
@@ -112,7 +112,7 @@
 
 	def test_expense_approver_perms(self):
 		user = "test_approver_perm_emp@example.com"
-		approver = make_employee(user, "_Test Company")
+		make_employee(user, "_Test Company")
 
 		# check doc shared
 		payable_account = get_payable_account("_Test Company")
@@ -160,21 +160,21 @@
 
 	currency, cost_center = frappe.db.get_value('Company', company, ['default_currency', 'cost_center'])
 	expense_claim = {
-		 "doctype": "Expense Claim",
-		 "employee": employee,
-		 "payable_account": payable_account,
-		 "approval_status": "Approved",
-		 "company": company,
-		'currency': currency,
-		 "expenses": [{
+		"doctype": "Expense Claim",
+		"employee": employee,
+		"payable_account": payable_account,
+		"approval_status": "Approved",
+		"company": company,
+		"currency": currency,
+		"expenses": [{
 			"expense_type": "Travel",
 			"default_account": account,
 			"currency": currency,
 			"amount": amount,
 			"sanctioned_amount": sanctioned_amount,
 			"cost_center": cost_center
-			}]
-		}
+		}]
+	}
 	if taxes:
 		expense_claim.update(taxes)
 
diff --git a/erpnext/hr/doctype/leave_application/test_leave_application.py b/erpnext/hr/doctype/leave_application/test_leave_application.py
index 0d56195..a5f9528 100644
--- a/erpnext/hr/doctype/leave_application/test_leave_application.py
+++ b/erpnext/hr/doctype/leave_application/test_leave_application.py
@@ -342,7 +342,7 @@
 			to_date = add_days(date, 4),
 			company = "_Test Company",
 			docstatus = 1,
-            status = "Approved"
+			status = "Approved"
 		))
 
 		self.assertRaises(frappe.ValidationError, leave_application.insert)
@@ -364,7 +364,7 @@
 			to_date = add_days(date, 4),
 			company = "_Test Company",
 			docstatus = 1,
-            status = "Approved"
+			status = "Approved"
 		))
 
 		self.assertTrue(leave_application.insert())
@@ -394,7 +394,7 @@
 			to_date = add_days(date, 4),
 			company = "_Test Company",
 			docstatus = 1,
-            status = "Approved"
+			status = "Approved"
 		))
 
 		self.assertRaises(frappe.ValidationError, leave_application.insert)
@@ -509,7 +509,7 @@
 			description = "_Test Reason",
 			company = "_Test Company",
 			docstatus = 1,
-            status = "Approved"
+			status = "Approved"
 		))
 		leave_application.submit()
 		leave_ledger_entry = frappe.get_all('Leave Ledger Entry', fields='*', filters=dict(transaction_name=leave_application.name))
@@ -541,7 +541,7 @@
 			description = "_Test Reason",
 			company = "_Test Company",
 			docstatus = 1,
-            status = "Approved"
+			status = "Approved"
 		))
 		leave_application.submit()
 
@@ -569,7 +569,7 @@
 	def test_leave_approver_perms(self):
 		employee = get_employee()
 		user = "test_approver_perm_emp@example.com"
-		approver = make_employee(user, "_Test Company")
+		make_employee(user, "_Test Company")
 
 		# set approver for employee
 		employee.reload()
diff --git a/erpnext/hr/doctype/leave_ledger_entry/leave_ledger_entry.py b/erpnext/hr/doctype/leave_ledger_entry/leave_ledger_entry.py
index 66dced4..cf13036 100644
--- a/erpnext/hr/doctype/leave_ledger_entry/leave_ledger_entry.py
+++ b/erpnext/hr/doctype/leave_ledger_entry/leave_ledger_entry.py
@@ -34,8 +34,8 @@
 	""", (ledger.employee, ledger.leave_type, ledger.from_date, ledger.to_date))
 
 	if leave_application_records:
-		frappe.throw(_("Leave allocation %s is linked with leave application %s"
-			% (ledger.transaction_name, ', '.join(leave_application_records))))
+		frappe.throw(_("Leave allocation {0} is linked with the Leave Application {1}").format(
+			ledger.transaction_name, ', '.join(leave_application_records)))
 
 def create_leave_ledger_entry(ref_doc, args, submit=True):
 	ledger = frappe._dict(
diff --git a/erpnext/hr/doctype/shift_request/test_shift_request.py b/erpnext/hr/doctype/shift_request/test_shift_request.py
index fd8dbd6..9c0d8e3 100644
--- a/erpnext/hr/doctype/shift_request/test_shift_request.py
+++ b/erpnext/hr/doctype/shift_request/test_shift_request.py
@@ -37,7 +37,7 @@
 	def test_shift_request_approver_perms(self):
 		employee = frappe.get_doc("Employee", "_T-Employee-00001")
 		user = "test_approver_perm_emp@example.com"
-		approver = make_employee(user, "_Test Company")
+		make_employee(user, "_Test Company")
 
 		# set approver for employee
 		employee.reload()