Remove naming conflict

Author: insspb

flask_mongoengine/db_fields.py

@@ -50,13 +50,13 @@
 
 try:
     from wtforms import fields as wtf_fields
-    from wtforms import validators as wtf_validators
+    from wtforms import validators as wtf_validators_
 
     from flask_mongoengine.wtf import fields as custom_fields
 except ImportError:  # pragma: no cover
     custom_fields = None
     wtf_fields = None
-    wtf_validators = None
+    wtf_validators_ = None
 
 
 class WtfFieldMixin:

tests/test_db_fields_import_protection.py

@@ -6,7 +6,7 @@ def test__when_wtforms_available__import_use_its_data(self):
         from flask_mongoengine import db_fields
 
         assert db_fields.wtf_fields is not None
-        assert db_fields.wtf_validators is not None
+        assert db_fields.wtf_validators_ is not None
 
     def test__core_class_imported_without_error(self, monkeypatch):
         monkeypatch.setattr("flask_mongoengine.decorators.wtf_installed", False)