first commit

modules/sale/exceptions.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.exceptions import UserError, UserWarning
+from trytond.model.exceptions import ValidationError
+
+
+class SaleValidationError(ValidationError):
+    pass
+
+
+class SaleQuotationError(ValidationError):
+    pass
+
+
+class SaleConfirmError(UserError):
+    pass
+
+
+class SaleMoveQuantity(UserWarning):
+    pass
+
+
+class PartyLocationError(UserError):
+    pass