style: format code with black
diff --git a/erpnext/accounts/general_ledger.py b/erpnext/accounts/general_ledger.py
index 0cd5e86..50f37be 100644
--- a/erpnext/accounts/general_ledger.py
+++ b/erpnext/accounts/general_ledger.py
@@ -16,9 +16,18 @@
 from erpnext.accounts.doctype.budget.budget import validate_expense_against_budget
 
 
-class ClosedAccountingPeriod(frappe.ValidationError): pass
+class ClosedAccountingPeriod(frappe.ValidationError):
+	pass
 
-def make_gl_entries(gl_map, cancel=False, adv_adj=False, merge_entries=True, update_outstanding='Yes', from_repost=False):
+
+def make_gl_entries(
+	gl_map,
+	cancel=False,
+	adv_adj=False,
+	merge_entries=True,
+	update_outstanding="Yes",
+	from_repost=False,
+):
 	if gl_map:
 		if not cancel:
 			validate_accounting_period(gl_map)
@@ -27,12 +36,18 @@
 				save_entries(gl_map, adv_adj, update_outstanding, from_repost)
 			# Post GL Map proccess there may no be any GL Entries
 			elif gl_map:
-				frappe.throw(_("Incorrect number of General Ledger Entries found. You might have selected a wrong Account in the transaction."))
+				frappe.throw(
+					_(
+						"Incorrect number of General Ledger Entries found. You might have selected a wrong Account in the transaction."
+					)
+				)
 		else:
 			make_reverse_gl_entries(gl_map, adv_adj=adv_adj, update_outstanding=update_outstanding)
 
+
 def validate_accounting_period(gl_map):
-	accounting_periods = frappe.db.sql(""" SELECT
+	accounting_periods = frappe.db.sql(
+		""" SELECT
 			ap.name as name
 		FROM
 			`tabAccounting Period` ap, `tabClosed Document` cd
@@ -42,15 +57,23 @@
 			AND cd.closed = 1
 			AND cd.document_type = %(voucher_type)s
 			AND %(date)s between ap.start_date and ap.end_date
-			""", {
-				'date': gl_map[0].posting_date,
-				'company': gl_map[0].company,
-				'voucher_type': gl_map[0].voucher_type
-			}, as_dict=1)
+			""",
+		{
+			"date": gl_map[0].posting_date,
+			"company": gl_map[0].company,
+			"voucher_type": gl_map[0].voucher_type,
+		},
+		as_dict=1,
+	)
 
 	if accounting_periods:
-		frappe.throw(_("You cannot create or cancel any accounting entries with in the closed Accounting Period {0}")
-			.format(frappe.bold(accounting_periods[0].name)), ClosedAccountingPeriod)
+		frappe.throw(
+			_(
+				"You cannot create or cancel any accounting entries with in the closed Accounting Period {0}"
+			).format(frappe.bold(accounting_periods[0].name)),
+			ClosedAccountingPeriod,
+		)
+
 
 def process_gl_map(gl_map, merge_entries=True, precision=None):
 	if not gl_map:
@@ -65,8 +88,11 @@
 
 	return gl_map
 
+
 def distribute_gl_based_on_cost_center_allocation(gl_map, precision=None):
-	cost_center_allocation = get_cost_center_allocation_data(gl_map[0]["company"], gl_map[0]["posting_date"])
+	cost_center_allocation = get_cost_center_allocation_data(
+		gl_map[0]["company"], gl_map[0]["posting_date"]
+	)
 	if not cost_center_allocation:
 		return gl_map
 
@@ -85,12 +111,15 @@
 
 	return new_gl_map
 
+
 def get_cost_center_allocation_data(company, posting_date):
 	par = frappe.qb.DocType("Cost Center Allocation")
 	child = frappe.qb.DocType("Cost Center Allocation Percentage")
 
 	records = (
-		frappe.qb.from_(par).inner_join(child).on(par.name == child.parent)
+		frappe.qb.from_(par)
+		.inner_join(child)
+		.on(par.name == child.parent)
 		.select(par.main_cost_center, child.cost_center, child.percentage)
 		.where(par.docstatus == 1)
 		.where(par.company == company)
@@ -100,11 +129,13 @@
 
 	cc_allocation = frappe._dict()
 	for d in records:
-		cc_allocation.setdefault(d.main_cost_center, frappe._dict())\
-			.setdefault(d.cost_center, d.percentage)
+		cc_allocation.setdefault(d.main_cost_center, frappe._dict()).setdefault(
+			d.cost_center, d.percentage
+		)
 
 	return cc_allocation
 
+
 def merge_similar_entries(gl_map, precision=None):
 	merged_gl_map = []
 	accounting_dimensions = get_accounting_dimensions()
@@ -113,12 +144,14 @@
 		# to that entry
 		same_head = check_if_in_list(entry, merged_gl_map, accounting_dimensions)
 		if same_head:
-			same_head.debit	= flt(same_head.debit) + flt(entry.debit)
-			same_head.debit_in_account_currency	= \
-				flt(same_head.debit_in_account_currency) + flt(entry.debit_in_account_currency)
+			same_head.debit = flt(same_head.debit) + flt(entry.debit)
+			same_head.debit_in_account_currency = flt(same_head.debit_in_account_currency) + flt(
+				entry.debit_in_account_currency
+			)
 			same_head.credit = flt(same_head.credit) + flt(entry.credit)
-			same_head.credit_in_account_currency = \
-				flt(same_head.credit_in_account_currency) + flt(entry.credit_in_account_currency)
+			same_head.credit_in_account_currency = flt(same_head.credit_in_account_currency) + flt(
+				entry.credit_in_account_currency
+			)
 		else:
 			merged_gl_map.append(entry)
 
@@ -129,14 +162,25 @@
 		precision = get_field_precision(frappe.get_meta("GL Entry").get_field("debit"), company_currency)
 
 	# filter zero debit and credit entries
-	merged_gl_map = filter(lambda x: flt(x.debit, precision)!=0 or flt(x.credit, precision)!=0, merged_gl_map)
+	merged_gl_map = filter(
+		lambda x: flt(x.debit, precision) != 0 or flt(x.credit, precision) != 0, merged_gl_map
+	)
 	merged_gl_map = list(merged_gl_map)
 
 	return merged_gl_map
 
+
 def check_if_in_list(gle, gl_map, dimensions=None):
-	account_head_fieldnames = ['voucher_detail_no', 'party', 'against_voucher',
-			'cost_center', 'against_voucher_type', 'party_type', 'project', 'finance_book']
+	account_head_fieldnames = [
+		"voucher_detail_no",
+		"party",
+		"against_voucher",
+		"cost_center",
+		"against_voucher_type",
+		"party_type",
+		"project",
+		"finance_book",
+	]
 
 	if dimensions:
 		account_head_fieldnames = account_head_fieldnames + dimensions
@@ -155,6 +199,7 @@
 		if same_head:
 			return e
 
+
 def toggle_debit_credit_if_negative(gl_map):
 	for entry in gl_map:
 		# toggle debit, credit if negative entry
@@ -163,8 +208,9 @@
 			entry.debit = 0.0
 
 		if flt(entry.debit_in_account_currency) < 0:
-			entry.credit_in_account_currency = \
-				flt(entry.credit_in_account_currency) - flt(entry.debit_in_account_currency)
+			entry.credit_in_account_currency = flt(entry.credit_in_account_currency) - flt(
+				entry.debit_in_account_currency
+			)
 			entry.debit_in_account_currency = 0.0
 
 		if flt(entry.credit) < 0:
@@ -172,32 +218,37 @@
 			entry.credit = 0.0
 
 		if flt(entry.credit_in_account_currency) < 0:
-			entry.debit_in_account_currency = \
-				flt(entry.debit_in_account_currency) - flt(entry.credit_in_account_currency)
+			entry.debit_in_account_currency = flt(entry.debit_in_account_currency) - flt(
+				entry.credit_in_account_currency
+			)
 			entry.credit_in_account_currency = 0.0
 
 		update_net_values(entry)
 
 	return gl_map
 
+
 def update_net_values(entry):
 	# In some scenarios net value needs to be shown in the ledger
 	# This method updates net values as debit or credit
 	if entry.post_net_value and entry.debit and entry.credit:
 		if entry.debit > entry.credit:
 			entry.debit = entry.debit - entry.credit
-			entry.debit_in_account_currency = entry.debit_in_account_currency \
-				- entry.credit_in_account_currency
+			entry.debit_in_account_currency = (
+				entry.debit_in_account_currency - entry.credit_in_account_currency
+			)
 			entry.credit = 0
 			entry.credit_in_account_currency = 0
 		else:
 			entry.credit = entry.credit - entry.debit
-			entry.credit_in_account_currency = entry.credit_in_account_currency \
-				- entry.debit_in_account_currency
+			entry.credit_in_account_currency = (
+				entry.credit_in_account_currency - entry.debit_in_account_currency
+			)
 
 			entry.debit = 0
 			entry.debit_in_account_currency = 0
 
+
 def save_entries(gl_map, adv_adj, update_outstanding, from_repost=False):
 	if not from_repost:
 		validate_cwip_accounts(gl_map)
@@ -210,36 +261,52 @@
 	for entry in gl_map:
 		make_entry(entry, adv_adj, update_outstanding, from_repost)
 
+
 def make_entry(args, adv_adj, update_outstanding, from_repost=False):
 	gle = frappe.new_doc("GL Entry")
 	gle.update(args)
 	gle.flags.ignore_permissions = 1
 	gle.flags.from_repost = from_repost
 	gle.flags.adv_adj = adv_adj
-	gle.flags.update_outstanding = update_outstanding or 'Yes'
+	gle.flags.update_outstanding = update_outstanding or "Yes"
 	gle.submit()
 
 	if not from_repost:
 		validate_expense_against_budget(args)
 
+
 def validate_cwip_accounts(gl_map):
 	"""Validate that CWIP account are not used in Journal Entry"""
 	if gl_map and gl_map[0].voucher_type != "Journal Entry":
 		return
 
-	cwip_enabled = any(cint(ac.enable_cwip_accounting) for ac in frappe.db.get_all("Asset Category", "enable_cwip_accounting"))
+	cwip_enabled = any(
+		cint(ac.enable_cwip_accounting)
+		for ac in frappe.db.get_all("Asset Category", "enable_cwip_accounting")
+	)
 	if cwip_enabled:
-		cwip_accounts = [d[0] for d in frappe.db.sql("""select name from tabAccount
-			where account_type = 'Capital Work in Progress' and is_group=0""")]
+		cwip_accounts = [
+			d[0]
+			for d in frappe.db.sql(
+				"""select name from tabAccount
+			where account_type = 'Capital Work in Progress' and is_group=0"""
+			)
+		]
 
 		for entry in gl_map:
 			if entry.account in cwip_accounts:
 				frappe.throw(
-					_("Account: <b>{0}</b> is capital Work in progress and can not be updated by Journal Entry").format(entry.account))
+					_(
+						"Account: <b>{0}</b> is capital Work in progress and can not be updated by Journal Entry"
+					).format(entry.account)
+				)
+
 
 def round_off_debit_credit(gl_map):
-	precision = get_field_precision(frappe.get_meta("GL Entry").get_field("debit"),
-		currency=frappe.get_cached_value('Company',  gl_map[0].company,  "default_currency"))
+	precision = get_field_precision(
+		frappe.get_meta("GL Entry").get_field("debit"),
+		currency=frappe.get_cached_value("Company", gl_map[0].company, "default_currency"),
+	)
 
 	debit_credit_diff = 0.0
 	for entry in gl_map:
@@ -252,17 +319,23 @@
 	if gl_map[0]["voucher_type"] in ("Journal Entry", "Payment Entry"):
 		allowance = 5.0 / (10**precision)
 	else:
-		allowance = .5
+		allowance = 0.5
 
 	if abs(debit_credit_diff) > allowance:
-		frappe.throw(_("Debit and Credit not equal for {0} #{1}. Difference is {2}.")
-			.format(gl_map[0].voucher_type, gl_map[0].voucher_no, debit_credit_diff))
+		frappe.throw(
+			_("Debit and Credit not equal for {0} #{1}. Difference is {2}.").format(
+				gl_map[0].voucher_type, gl_map[0].voucher_no, debit_credit_diff
+			)
+		)
 
 	elif abs(debit_credit_diff) >= (1.0 / (10**precision)):
 		make_round_off_gle(gl_map, debit_credit_diff, precision)
 
+
 def make_round_off_gle(gl_map, debit_credit_diff, precision):
-	round_off_account, round_off_cost_center = get_round_off_account_and_cost_center(gl_map[0].company)
+	round_off_account, round_off_cost_center = get_round_off_account_and_cost_center(
+		gl_map[0].company
+	)
 	round_off_account_exists = False
 	round_off_gle = frappe._dict()
 	for d in gl_map:
@@ -279,30 +352,33 @@
 		return
 
 	if not round_off_gle:
-		for k in ["voucher_type", "voucher_no", "company",
-			"posting_date", "remarks"]:
-				round_off_gle[k] = gl_map[0][k]
+		for k in ["voucher_type", "voucher_no", "company", "posting_date", "remarks"]:
+			round_off_gle[k] = gl_map[0][k]
 
-	round_off_gle.update({
-		"account": round_off_account,
-		"debit_in_account_currency": abs(debit_credit_diff) if debit_credit_diff < 0 else 0,
-		"credit_in_account_currency": debit_credit_diff if debit_credit_diff > 0 else 0,
-		"debit": abs(debit_credit_diff) if debit_credit_diff < 0 else 0,
-		"credit": debit_credit_diff if debit_credit_diff > 0 else 0,
-		"cost_center": round_off_cost_center,
-		"party_type": None,
-		"party": None,
-		"is_opening": "No",
-		"against_voucher_type": None,
-		"against_voucher": None
-	})
+	round_off_gle.update(
+		{
+			"account": round_off_account,
+			"debit_in_account_currency": abs(debit_credit_diff) if debit_credit_diff < 0 else 0,
+			"credit_in_account_currency": debit_credit_diff if debit_credit_diff > 0 else 0,
+			"debit": abs(debit_credit_diff) if debit_credit_diff < 0 else 0,
+			"credit": debit_credit_diff if debit_credit_diff > 0 else 0,
+			"cost_center": round_off_cost_center,
+			"party_type": None,
+			"party": None,
+			"is_opening": "No",
+			"against_voucher_type": None,
+			"against_voucher": None,
+		}
+	)
 
 	if not round_off_account_exists:
 		gl_map.append(round_off_gle)
 
+
 def get_round_off_account_and_cost_center(company):
-	round_off_account, round_off_cost_center = frappe.get_cached_value('Company',  company,
-		["round_off_account", "round_off_cost_center"]) or [None, None]
+	round_off_account, round_off_cost_center = frappe.get_cached_value(
+		"Company", company, ["round_off_account", "round_off_cost_center"]
+	) or [None, None]
 	if not round_off_account:
 		frappe.throw(_("Please mention Round Off Account in Company"))
 
@@ -311,74 +387,83 @@
 
 	return round_off_account, round_off_cost_center
 
-def make_reverse_gl_entries(gl_entries=None, voucher_type=None, voucher_no=None,
-	adv_adj=False, update_outstanding="Yes"):
+
+def make_reverse_gl_entries(
+	gl_entries=None, voucher_type=None, voucher_no=None, adv_adj=False, update_outstanding="Yes"
+):
 	"""
-		Get original gl entries of the voucher
-		and make reverse gl entries by swapping debit and credit
+	Get original gl entries of the voucher
+	and make reverse gl entries by swapping debit and credit
 	"""
 
 	if not gl_entries:
 		gl_entry = frappe.qb.DocType("GL Entry")
-		gl_entries = (frappe.qb.from_(
-			gl_entry
-		).select(
-			'*'
-		).where(
-			gl_entry.voucher_type == voucher_type
-		).where(
-			gl_entry.voucher_no == voucher_no
-		).where(
-			gl_entry.is_cancelled == 0
-		).for_update()).run(as_dict=1)
+		gl_entries = (
+			frappe.qb.from_(gl_entry)
+			.select("*")
+			.where(gl_entry.voucher_type == voucher_type)
+			.where(gl_entry.voucher_no == voucher_no)
+			.where(gl_entry.is_cancelled == 0)
+			.for_update()
+		).run(as_dict=1)
 
 	if gl_entries:
 		validate_accounting_period(gl_entries)
 		check_freezing_date(gl_entries[0]["posting_date"], adv_adj)
-		set_as_cancel(gl_entries[0]['voucher_type'], gl_entries[0]['voucher_no'])
+		set_as_cancel(gl_entries[0]["voucher_type"], gl_entries[0]["voucher_no"])
 
 		for entry in gl_entries:
 			new_gle = copy.deepcopy(entry)
-			new_gle['name'] = None
-			debit = new_gle.get('debit', 0)
-			credit = new_gle.get('credit', 0)
+			new_gle["name"] = None
+			debit = new_gle.get("debit", 0)
+			credit = new_gle.get("credit", 0)
 
-			debit_in_account_currency = new_gle.get('debit_in_account_currency', 0)
-			credit_in_account_currency = new_gle.get('credit_in_account_currency', 0)
+			debit_in_account_currency = new_gle.get("debit_in_account_currency", 0)
+			credit_in_account_currency = new_gle.get("credit_in_account_currency", 0)
 
-			new_gle['debit'] = credit
-			new_gle['credit'] = debit
-			new_gle['debit_in_account_currency'] = credit_in_account_currency
-			new_gle['credit_in_account_currency'] = debit_in_account_currency
+			new_gle["debit"] = credit
+			new_gle["credit"] = debit
+			new_gle["debit_in_account_currency"] = credit_in_account_currency
+			new_gle["credit_in_account_currency"] = debit_in_account_currency
 
-			new_gle['remarks'] = "On cancellation of " + new_gle['voucher_no']
-			new_gle['is_cancelled'] = 1
+			new_gle["remarks"] = "On cancellation of " + new_gle["voucher_no"]
+			new_gle["is_cancelled"] = 1
 
-			if new_gle['debit'] or new_gle['credit']:
+			if new_gle["debit"] or new_gle["credit"]:
 				make_entry(new_gle, adv_adj, "Yes")
 
 
 def check_freezing_date(posting_date, adv_adj=False):
 	"""
-		Nobody can do GL Entries where posting date is before freezing date
-		except authorized person
+	Nobody can do GL Entries where posting date is before freezing date
+	except authorized person
 
-		Administrator has all the roles so this check will be bypassed if any role is allowed to post
-		Hence stop admin to bypass if accounts are freezed
+	Administrator has all the roles so this check will be bypassed if any role is allowed to post
+	Hence stop admin to bypass if accounts are freezed
 	"""
 	if not adv_adj:
-		acc_frozen_upto = frappe.db.get_value('Accounts Settings', None, 'acc_frozen_upto')
+		acc_frozen_upto = frappe.db.get_value("Accounts Settings", None, "acc_frozen_upto")
 		if acc_frozen_upto:
-			frozen_accounts_modifier = frappe.db.get_value( 'Accounts Settings', None,'frozen_accounts_modifier')
-			if getdate(posting_date) <= getdate(acc_frozen_upto) \
-					and (frozen_accounts_modifier not in frappe.get_roles() or frappe.session.user == 'Administrator'):
-				frappe.throw(_("You are not authorized to add or update entries before {0}").format(formatdate(acc_frozen_upto)))
+			frozen_accounts_modifier = frappe.db.get_value(
+				"Accounts Settings", None, "frozen_accounts_modifier"
+			)
+			if getdate(posting_date) <= getdate(acc_frozen_upto) and (
+				frozen_accounts_modifier not in frappe.get_roles() or frappe.session.user == "Administrator"
+			):
+				frappe.throw(
+					_("You are not authorized to add or update entries before {0}").format(
+						formatdate(acc_frozen_upto)
+					)
+				)
+
 
 def set_as_cancel(voucher_type, voucher_no):
 	"""
-		Set is_cancelled=1 in all original gl entries for the voucher
+	Set is_cancelled=1 in all original gl entries for the voucher
 	"""
-	frappe.db.sql("""UPDATE `tabGL Entry` SET is_cancelled = 1,
+	frappe.db.sql(
+		"""UPDATE `tabGL Entry` SET is_cancelled = 1,
 		modified=%s, modified_by=%s
 		where voucher_type=%s and voucher_no=%s and is_cancelled = 0""",
-		(now(), frappe.session.user, voucher_type, voucher_no))
+		(now(), frappe.session.user, voucher_type, voucher_no),
+	)