brotherton-erpnext/erpnext/patches/v7_0/update_party_status.py

import frappe
from erpnext.accounts.party_status import status_depends_on, default_status
from frappe.desk.notifications import get_filters_for

def execute():
	for party_type in ('Customer', 'Supplier'):
		frappe.reload_doctype(party_type)

		# set all as default status
		frappe.db.sql('update `tab{0}` set status=%s'.format(party_type), default_status[party_type])

		for doctype in status_depends_on[party_type]:
			filters = get_filters_for(doctype)
			parties = frappe.get_all(doctype, fields="{0} as party".format(party_type.lower()),
				filters=filters, limit_page_length=1)

			parties = filter(None, [p.party for p in parties])

			if parties:
				frappe.db.sql('update `tab{0}` set status="Open" where name in ({1})'.format(party_type,
					', '.join(len(parties) * ['%s'])), parties)