chore: Clean up imports (#27302)
* chore: Added isort to pre-commit config
* chore: Sort imports with isort
* chore: Clean up imports with pycln
* chore: Sort imports with isort
* chore: Fix import issues
* chore: Clean up sider issues
* chore: Remove import errors from flake8 ignore list
* chore: Clean up lint issues
diff --git a/erpnext/exceptions.py b/erpnext/exceptions.py
index 04291cd..9c6b13f 100644
--- a/erpnext/exceptions.py
+++ b/erpnext/exceptions.py
@@ -1,6 +1,8 @@
from __future__ import unicode_literals
+
import frappe
+
# accounts
class PartyFrozen(frappe.ValidationError): pass
class InvalidAccountCurrency(frappe.ValidationError): pass